firefox: thunderbird: Same-origin policy bypass in the Request Handling component

cve CVE-2025-14331 2 sources, 2 claims · Watch

Red Hat writes:
firefox: thunderbird: Same-origin policy bypass in the Request Handling component the claim

What it is to other things

affectsmozilla/firefox
NVD
affectsmozilla/thunderbird
NVD
made_bymozilla
NVD

What each source says

PropertySourceSaidMeans here
Cvss
cvss
conflict		NVD6.5
receipt
Source
NVD
Its words
6.5
Read by
field:cve.metrics.cvssMetricV31[].cvssData.baseScore
Said since
2026-10-02 12:00 UTC
Last answered
2026-10-04 12:15 UTC
Original
open at the source
What the source handed over
{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "product": "Firefox",
            "vendor": "Mozilla",
            "versions": [
              {
                "lessThanOrEqual": "115.*",
                "status": "unaffected",
                "version": "115.31",
                "versionType": "rpm"
              },
              {
                "lessThanOrEqual": "140.*",
                "status": "unaffected",
                "version": "140.6",
                "versionType": "rpm"
              },
              {
                "lessThanOrEqual": "*",
                "status": "unaffected",
                "version": "146",
                "versionType": "rpm"
              }
            ]
          },
          {
            "product": "Thunderbird",
            "vendor": "Mozilla",
            "versions": [
              {
                "lessThanOrEqual": "140.*",
                "status": "unaffected",
                "version": "140.6",
                "versionType": "rpm"
              },
              {
                "lessThanOrEqual": "*",
                "status": "unaffected",
                "version": "146",
                "versionType": "rpm"
              }
            ]
          }
        ],
        "source": "security@mozilla.org"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*",
                "matchCriteriaId": "22C1C512-2D57-4BCB-ABE2-5CA41F354AA1",
                "versionEndExcluding": "115.31.0",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*",
                "matchCriteriaId": "3EF4CBBC-DCB5-4540-8B8A-91DA759ED631",
                "versionEndExcluding": "146.0",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*",
                "matchCriteriaId": "AB211B63-E6CF-4D11-BCEE-CF495FA0B0EF",
                "versionEndExcluding": "140.6.0",
                "versionStartIncluding": "116.0",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:mozilla:thunderbird:*:*:*:*:esr:*:*:*",
                "matchCriteriaId": "F04F8674-52CC-4217-B94A-8C5E80C5B996",
                "versionEndExcluding": "140.6.0",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:*",
                "matchCriteriaId": "1CB46BC7-512D-45BF-BCF4-73FDDF94DBAF",
                "versionEndExcluding": "146.0",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "Same-origin policy bypass in the Request Handling component. This vulnerability was fixed in Firefox 146, Firefox ESR 115.31, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6."
      },
      {
        "lang": "es",
        "value": "Elusión de la política del mismo origen en el componente de gestión de solicitudes. Esta vulnerabilidad afecta a Firefox < 146, Firefox ESR < 115.31, Firefox ESR < 140.6, Thunderbird < 146, y Thunderbird < 140.6."
      }
    ],
    "id": "CVE-2025-14331",
    "lastModified": "2026-09-30T17:10:00.187",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 2.5,
          "source": "nvd@nist.gov",
          "type": "Primary"
        },
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 2.5,
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2025-14331",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "yes"
              },
              {
                "technicalImpact": "partial"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2025-12-09T16:59:10.319738Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2025-12-09T16:17:40.773",
    "references": [
      {
        "source": "security@mozilla.org",
        "tags": [
          "Issue Tracking",
          "Permissions Required"
        ],
        "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2000218"
      },
      {
        "source": "security@mozilla.org",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://www.mozilla.org/security/advisories/mfsa2025-92/"
      },
      {
        "source": "security@mozilla.org",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://www.mozilla.org/security/advisories/mfsa2025-93/"
      },
      {
        "source": "security@mozilla.org",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://www.mozilla.org/security/advisories/mfsa2025-94/"
      },
      {
        "source": "security@mozilla.org",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://www.mozilla.org/security/advisories/mfsa2025-95/"
      },
      {
        "source": "security@mozilla.org",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://www.mozilla.org/security/advisories/mfsa2025-96/"
      }
    ],
    "sourceIdentifier": "security@mozilla.org",
    "vulnStatus": "Modified",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-346"
          }
        ],
        "source": "nvd@nist.gov",
        "type": "Primary"
      },
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-346"
          }
        ],
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  }
}
—
Cvss
cvss
conflict		Red Hat6.1
receipt
Source
Red Hat
Its words
6.1
Read by
field:cvss3_score
Said since
2026-09-29 09:44 UTC
Last answered
2026-10-04 12:16 UTC
Original
open at the source
What the source handed over
{
  "CVE": "CVE-2025-14331",
  "CWE": null,
  "advisories": [
    "RHSA-2026:0015",
    "RHSA-2026:0016",
    "RHSA-2026:0013",
    "RHSA-2026:0014",
    "RHSA-2026:0019",
    "RHSA-2026:0017",
    "RHSA-2026:0018",
    "RHSA-2025:23856",
    "RHSA-2025:23035",
    "RHSA-2026:0026",
    "RHSA-2026:0004",
    "RHSA-2026:0005",
    "RHSA-2026:0024",
    "RHSA-2026:0025",
    "RHSA-2026:0124",
    "RHSA-2026:0003",
    "RHSA-2026:0127",
    "RHSA-2026:0006",
    "RHSA-2026:0007",
    "RHSA-2025:23034",
    "RHSA-2025:23128",
    "RHSA-2026:0022",
    "RHSA-2026:0023",
    "RHSA-2026:0020",
    "RHSA-2026:0021"
  ],
  "affected_packages": [
    "firefox-0:140.6.0-1.el9_4",
    "thunderbird-0:140.6.0-1.el10_0",
    "thunderbird-0:140.6.0-1.el10_1",
    "firefox-0:140.6.0-1.el9_0",
    "firefox-0:140.6.0-1.el10_0",
    "firefox-0:140.6.0-1.el9_2",
    "firefox-0:140.6.0-1.el8_2",
    "firefox-0:140.6.0-1.el10_1",
    "firefox-0:140.6.0-1.el7_9",
    "firefox-0:140.6.0-1.el9_7",
    "thunderbird-0:140.6.0-1.el9_6",
    "thunderbird-0:140.6.0-1.el8_6",
    "thunderbird-0:140.6.0-1.el9_4",
    "thunderbird-0:140.6.0-1.el8_4",
    "thunderbird-0:140.6.0-1.el8_8",
    "thunderbird-0:140.6.0-1.el9_7",
    "thunderbird-0:140.6.0-1.el9_2",
    "thunderbird-0:140.6.0-1.el8_2",
    "thunderbird-0:140.6.0-1.el9_0",
    "firefox-0:140.6.0-2.el9_6",
    "firefox-0:140.6.0-2.el8_8",
    "firefox-0:140.6.0-2.el8_4",
    "firefox-0:140.6.0-2.el8_6",
    "firefox-0:140.6.0-1.el8_10",
    "thunderbird-0:140.6.0-1.el8_10"
  ],
  "bugzilla": "2420512",
  "bugzilla_description": "firefox: thunderbird: Same-origin policy bypass in the Request Handling component",
  "cvss3_score": "6.1",
  "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
  "cvss_score": null,
  "cvss_scoring_vector": null,
  "package_state": null,
  "public_date": "2025-12-09T13:38:07Z",
  "resource_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-14331.json",
  "severity": "moderate"
}
—
Packages
packages
Red Hatfirefox-0:140.6.0-1.el9_4, thunderbird-0:140.6.0-1.el10_0, thunderbird-0:140.6.0-1.el10_1, firefox-0:140.6.0-1.el9_0, firefox-0:140.6.0-1.el10_0, firefox-0:140.6.0-1.el9_2, firefox-0:140.6.0-1.el8_2, firefox-0:140.6.0-1.el10_1, firefox-0:140.6.0-1.el7_9, firefox-0:140.6.0-1.el9_7, thunderbird-0:140.6.0-1.el9_6, thunderbird-0:140.6.0-1.el8_6, thunderbird-0:140.6.0-1.el9_4, thunderbird-0:140.6.0-1.el8_4, thunderbird-0:140.6.0-1.el8_8, thunderbird-0:140.6.0-1.el9_7, thunderbird-0:140.6.0-1.el9_2, thunderbird-0:140.6.0-1.el8_2, thunderbird-0:140.6.0-1.el9_0, firefox-0:140.6.0-2.el9_6, firefox-0:140.6.0-2.el8_8, firefox-0:140.6.0-2.el8_4, firefox-0:140.6.0-2.el8_6, firefox-0:140.6.0-1.el8_10, thunderbird-0:140.6.0-1.el8_10
receipt
Source
Red Hat
Its words
firefox-0:140.6.0-1.el9_4, thunderbird-0:140.6.0-1.el10_0, thunderbird-0:140.6.0-1.el10_1, firefox-0:140.6.0-1.el9_0, firefox-0:140.6.0-1.el10_0, firefox-0:140.6.0-1.el9_2, firefox-0:140.6.0-1.el8_2, firefox-0:140.6.0-1.el10_1, firefox-0:140.6.0-1.el7_9, firefox-0:140.6.0-1.el9_7, thunderbird-0:140.6.0-1.el9_6, thunderbird-0:140.6.0-1.el8_6, thunderbird-0:140.6.0-1.el9_4, thunderbird-0:140.6.0-1.el8_4, thunderbird-0:140.6.0-1.el8_8, thunderbird-0:140.6.0-1.el9_7, thunderbird-0:140.6.0-1.el9_2, thunderbird-0:140.6.0-1.el8_2, thunderbird-0:140.6.0-1.el9_0, firefox-0:140.6.0-2.el9_6, firefox-0:140.6.0-2.el8_8, firefox-0:140.6.0-2.el8_4, firefox-0:140.6.0-2.el8_6, firefox-0:140.6.0-1.el8_10, thunderbird-0:140.6.0-1.el8_10
Read by
field:affected_packages[]
Said since
2026-09-29 09:44 UTC
Last answered
2026-10-04 12:16 UTC
Original
open at the source
What the source handed over
{
  "CVE": "CVE-2025-14331",
  "CWE": null,
  "advisories": [
    "RHSA-2026:0015",
    "RHSA-2026:0016",
    "RHSA-2026:0013",
    "RHSA-2026:0014",
    "RHSA-2026:0019",
    "RHSA-2026:0017",
    "RHSA-2026:0018",
    "RHSA-2025:23856",
    "RHSA-2025:23035",
    "RHSA-2026:0026",
    "RHSA-2026:0004",
    "RHSA-2026:0005",
    "RHSA-2026:0024",
    "RHSA-2026:0025",
    "RHSA-2026:0124",
    "RHSA-2026:0003",
    "RHSA-2026:0127",
    "RHSA-2026:0006",
    "RHSA-2026:0007",
    "RHSA-2025:23034",
    "RHSA-2025:23128",
    "RHSA-2026:0022",
    "RHSA-2026:0023",
    "RHSA-2026:0020",
    "RHSA-2026:0021"
  ],
  "affected_packages": [
    "firefox-0:140.6.0-1.el9_4",
    "thunderbird-0:140.6.0-1.el10_0",
    "thunderbird-0:140.6.0-1.el10_1",
    "firefox-0:140.6.0-1.el9_0",
    "firefox-0:140.6.0-1.el10_0",
    "firefox-0:140.6.0-1.el9_2",
    "firefox-0:140.6.0-1.el8_2",
    "firefox-0:140.6.0-1.el10_1",
    "firefox-0:140.6.0-1.el7_9",
    "firefox-0:140.6.0-1.el9_7",
    "thunderbird-0:140.6.0-1.el9_6",
    "thunderbird-0:140.6.0-1.el8_6",
    "thunderbird-0:140.6.0-1.el9_4",
    "thunderbird-0:140.6.0-1.el8_4",
    "thunderbird-0:140.6.0-1.el8_8",
    "thunderbird-0:140.6.0-1.el9_7",
    "thunderbird-0:140.6.0-1.el9_2",
    "thunderbird-0:140.6.0-1.el8_2",
    "thunderbird-0:140.6.0-1.el9_0",
    "firefox-0:140.6.0-2.el9_6",
    "firefox-0:140.6.0-2.el8_8",
    "firefox-0:140.6.0-2.el8_4",
    "firefox-0:140.6.0-2.el8_6",
    "firefox-0:140.6.0-1.el8_10",
    "thunderbird-0:140.6.0-1.el8_10"
  ],
  "bugzilla": "2420512",
  "bugzilla_description": "firefox: thunderbird: Same-origin policy bypass in the Request Handling component",
  "cvss3_score": "6.1",
  "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
  "cvss_score": null,
  "cvss_scoring_vector": null,
  "package_state": null,
  "public_date": "2025-12-09T13:38:07Z",
  "resource_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-14331.json",
  "severity": "moderate"
}
—
Product
product
NVDFirefox
receipt
Source
NVD
Its words
Firefox
Read by
field:cve.affected[].affectedData[].product
Said since
2026-10-02 12:00 UTC
Last answered
2026-10-04 12:15 UTC
Original
open at the source
What the source handed over
{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "product": "Firefox",
            "vendor": "Mozilla",
            "versions": [
              {
                "lessThanOrEqual": "115.*",
                "status": "unaffected",
                "version": "115.31",
                "versionType": "rpm"
              },
              {
                "lessThanOrEqual": "140.*",
                "status": "unaffected",
                "version": "140.6",
                "versionType": "rpm"
              },
              {
                "lessThanOrEqual": "*",
                "status": "unaffected",
                "version": "146",
                "versionType": "rpm"
              }
            ]
          },
          {
            "product": "Thunderbird",
            "vendor": "Mozilla",
            "versions": [
              {
                "lessThanOrEqual": "140.*",
                "status": "unaffected",
                "version": "140.6",
                "versionType": "rpm"
              },
              {
                "lessThanOrEqual": "*",
                "status": "unaffected",
                "version": "146",
                "versionType": "rpm"
              }
            ]
          }
        ],
        "source": "security@mozilla.org"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*",
                "matchCriteriaId": "22C1C512-2D57-4BCB-ABE2-5CA41F354AA1",
                "versionEndExcluding": "115.31.0",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*",
                "matchCriteriaId": "3EF4CBBC-DCB5-4540-8B8A-91DA759ED631",
                "versionEndExcluding": "146.0",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*",
                "matchCriteriaId": "AB211B63-E6CF-4D11-BCEE-CF495FA0B0EF",
                "versionEndExcluding": "140.6.0",
                "versionStartIncluding": "116.0",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:mozilla:thunderbird:*:*:*:*:esr:*:*:*",
                "matchCriteriaId": "F04F8674-52CC-4217-B94A-8C5E80C5B996",
                "versionEndExcluding": "140.6.0",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:*",
                "matchCriteriaId": "1CB46BC7-512D-45BF-BCF4-73FDDF94DBAF",
                "versionEndExcluding": "146.0",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "Same-origin policy bypass in the Request Handling component. This vulnerability was fixed in Firefox 146, Firefox ESR 115.31, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6."
      },
      {
        "lang": "es",
        "value": "Elusión de la política del mismo origen en el componente de gestión de solicitudes. Esta vulnerabilidad afecta a Firefox < 146, Firefox ESR < 115.31, Firefox ESR < 140.6, Thunderbird < 146, y Thunderbird < 140.6."
      }
    ],
    "id": "CVE-2025-14331",
    "lastModified": "2026-09-30T17:10:00.187",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 2.5,
          "source": "nvd@nist.gov",
          "type": "Primary"
        },
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 2.5,
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2025-14331",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "yes"
              },
              {
                "technicalImpact": "partial"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2025-12-09T16:59:10.319738Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2025-12-09T16:17:40.773",
    "references": [
      {
        "source": "security@mozilla.org",
        "tags": [
          "Issue Tracking",
          "Permissions Required"
        ],
        "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2000218"
      },
      {
        "source": "security@mozilla.org",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://www.mozilla.org/security/advisories/mfsa2025-92/"
      },
      {
        "source": "security@mozilla.org",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://www.mozilla.org/security/advisories/mfsa2025-93/"
      },
      {
        "source": "security@mozilla.org",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://www.mozilla.org/security/advisories/mfsa2025-94/"
      },
      {
        "source": "security@mozilla.org",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://www.mozilla.org/security/advisories/mfsa2025-95/"
      },
      {
        "source": "security@mozilla.org",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://www.mozilla.org/security/advisories/mfsa2025-96/"
      }
    ],
    "sourceIdentifier": "security@mozilla.org",
    "vulnStatus": "Modified",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-346"
          }
        ],
        "source": "nvd@nist.gov",
        "type": "Primary"
      },
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-346"
          }
        ],
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  }
}
—
Severity
severity
Red Hatmoderate
A flaw that is harder to exploit, or whose impact is limited.
receipt
Source
Red Hat
Its words
moderate
Read by
field:severity
Said since
2026-09-29 09:44 UTC
Last answered
2026-10-04 12:16 UTC
Original
open at the source
What the source handed over
{
  "CVE": "CVE-2025-14331",
  "CWE": null,
  "advisories": [
    "RHSA-2026:0015",
    "RHSA-2026:0016",
    "RHSA-2026:0013",
    "RHSA-2026:0014",
    "RHSA-2026:0019",
    "RHSA-2026:0017",
    "RHSA-2026:0018",
    "RHSA-2025:23856",
    "RHSA-2025:23035",
    "RHSA-2026:0026",
    "RHSA-2026:0004",
    "RHSA-2026:0005",
    "RHSA-2026:0024",
    "RHSA-2026:0025",
    "RHSA-2026:0124",
    "RHSA-2026:0003",
    "RHSA-2026:0127",
    "RHSA-2026:0006",
    "RHSA-2026:0007",
    "RHSA-2025:23034",
    "RHSA-2025:23128",
    "RHSA-2026:0022",
    "RHSA-2026:0023",
    "RHSA-2026:0020",
    "RHSA-2026:0021"
  ],
  "affected_packages": [
    "firefox-0:140.6.0-1.el9_4",
    "thunderbird-0:140.6.0-1.el10_0",
    "thunderbird-0:140.6.0-1.el10_1",
    "firefox-0:140.6.0-1.el9_0",
    "firefox-0:140.6.0-1.el10_0",
    "firefox-0:140.6.0-1.el9_2",
    "firefox-0:140.6.0-1.el8_2",
    "firefox-0:140.6.0-1.el10_1",
    "firefox-0:140.6.0-1.el7_9",
    "firefox-0:140.6.0-1.el9_7",
    "thunderbird-0:140.6.0-1.el9_6",
    "thunderbird-0:140.6.0-1.el8_6",
    "thunderbird-0:140.6.0-1.el9_4",
    "thunderbird-0:140.6.0-1.el8_4",
    "thunderbird-0:140.6.0-1.el8_8",
    "thunderbird-0:140.6.0-1.el9_7",
    "thunderbird-0:140.6.0-1.el9_2",
    "thunderbird-0:140.6.0-1.el8_2",
    "thunderbird-0:140.6.0-1.el9_0",
    "firefox-0:140.6.0-2.el9_6",
    "firefox-0:140.6.0-2.el8_8",
    "firefox-0:140.6.0-2.el8_4",
    "firefox-0:140.6.0-2.el8_6",
    "firefox-0:140.6.0-1.el8_10",
    "thunderbird-0:140.6.0-1.el8_10"
  ],
  "bugzilla": "2420512",
  "bugzilla_description": "firefox: thunderbird: Same-origin policy bypass in the Request Handling component",
  "cvss3_score": "6.1",
  "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
  "cvss_score": null,
  "cvss_scoring_vector": null,
  "package_state": null,
  "public_date": "2025-12-09T13:38:07Z",
  "resource_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2025-14331.json",
  "severity": "moderate"
}
medium
Status
status
NVDModified
receipt
Source
NVD
Its words
Modified
Read by
field:cve.vulnStatus
Said since
2026-10-02 12:00 UTC
Last answered
2026-10-04 12:15 UTC
Original
open at the source
What the source handed over
{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "product": "Firefox",
            "vendor": "Mozilla",
            "versions": [
              {
                "lessThanOrEqual": "115.*",
                "status": "unaffected",
                "version": "115.31",
                "versionType": "rpm"
              },
              {
                "lessThanOrEqual": "140.*",
                "status": "unaffected",
                "version": "140.6",
                "versionType": "rpm"
              },
              {
                "lessThanOrEqual": "*",
                "status": "unaffected",
                "version": "146",
                "versionType": "rpm"
              }
            ]
          },
          {
            "product": "Thunderbird",
            "vendor": "Mozilla",
            "versions": [
              {
                "lessThanOrEqual": "140.*",
                "status": "unaffected",
                "version": "140.6",
                "versionType": "rpm"
              },
              {
                "lessThanOrEqual": "*",
                "status": "unaffected",
                "version": "146",
                "versionType": "rpm"
              }
            ]
          }
        ],
        "source": "security@mozilla.org"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*",
                "matchCriteriaId": "22C1C512-2D57-4BCB-ABE2-5CA41F354AA1",
                "versionEndExcluding": "115.31.0",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*",
                "matchCriteriaId": "3EF4CBBC-DCB5-4540-8B8A-91DA759ED631",
                "versionEndExcluding": "146.0",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*",
                "matchCriteriaId": "AB211B63-E6CF-4D11-BCEE-CF495FA0B0EF",
                "versionEndExcluding": "140.6.0",
                "versionStartIncluding": "116.0",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:mozilla:thunderbird:*:*:*:*:esr:*:*:*",
                "matchCriteriaId": "F04F8674-52CC-4217-B94A-8C5E80C5B996",
                "versionEndExcluding": "140.6.0",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:*",
                "matchCriteriaId": "1CB46BC7-512D-45BF-BCF4-73FDDF94DBAF",
                "versionEndExcluding": "146.0",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "Same-origin policy bypass in the Request Handling component. This vulnerability was fixed in Firefox 146, Firefox ESR 115.31, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6."
      },
      {
        "lang": "es",
        "value": "Elusión de la política del mismo origen en el componente de gestión de solicitudes. Esta vulnerabilidad afecta a Firefox < 146, Firefox ESR < 115.31, Firefox ESR < 140.6, Thunderbird < 146, y Thunderbird < 140.6."
      }
    ],
    "id": "CVE-2025-14331",
    "lastModified": "2026-09-30T17:10:00.187",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 2.5,
          "source": "nvd@nist.gov",
          "type": "Primary"
        },
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 2.5,
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2025-14331",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "yes"
              },
              {
                "technicalImpact": "partial"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2025-12-09T16:59:10.319738Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2025-12-09T16:17:40.773",
    "references": [
      {
        "source": "security@mozilla.org",
        "tags": [
          "Issue Tracking",
          "Permissions Required"
        ],
        "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2000218"
      },
      {
        "source": "security@mozilla.org",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://www.mozilla.org/security/advisories/mfsa2025-92/"
      },
      {
        "source": "security@mozilla.org",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://www.mozilla.org/security/advisories/mfsa2025-93/"
      },
      {
        "source": "security@mozilla.org",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://www.mozilla.org/security/advisories/mfsa2025-94/"
      },
      {
        "source": "security@mozilla.org",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://www.mozilla.org/security/advisories/mfsa2025-95/"
      },
      {
        "source": "security@mozilla.org",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://www.mozilla.org/security/advisories/mfsa2025-96/"
      }
    ],
    "sourceIdentifier": "security@mozilla.org",
    "vulnStatus": "Modified",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-346"
          }
        ],
        "source": "nvd@nist.gov",
        "type": "Primary"
      },
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-346"
          }
        ],
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  }
}
—
Vendor
vendor
NVDMozilla
receipt
Source
NVD
Its words
Mozilla
Read by
field:cve.affected[].affectedData[].vendor
Said since
2026-10-02 12:00 UTC
Last answered
2026-10-04 12:15 UTC
Original
open at the source
What the source handed over
{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "product": "Firefox",
            "vendor": "Mozilla",
            "versions": [
              {
                "lessThanOrEqual": "115.*",
                "status": "unaffected",
                "version": "115.31",
                "versionType": "rpm"
              },
              {
                "lessThanOrEqual": "140.*",
                "status": "unaffected",
                "version": "140.6",
                "versionType": "rpm"
              },
              {
                "lessThanOrEqual": "*",
                "status": "unaffected",
                "version": "146",
                "versionType": "rpm"
              }
            ]
          },
          {
            "product": "Thunderbird",
            "vendor": "Mozilla",
            "versions": [
              {
                "lessThanOrEqual": "140.*",
                "status": "unaffected",
                "version": "140.6",
                "versionType": "rpm"
              },
              {
                "lessThanOrEqual": "*",
                "status": "unaffected",
                "version": "146",
                "versionType": "rpm"
              }
            ]
          }
        ],
        "source": "security@mozilla.org"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*",
                "matchCriteriaId": "22C1C512-2D57-4BCB-ABE2-5CA41F354AA1",
                "versionEndExcluding": "115.31.0",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*",
                "matchCriteriaId": "3EF4CBBC-DCB5-4540-8B8A-91DA759ED631",
                "versionEndExcluding": "146.0",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*",
                "matchCriteriaId": "AB211B63-E6CF-4D11-BCEE-CF495FA0B0EF",
                "versionEndExcluding": "140.6.0",
                "versionStartIncluding": "116.0",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:mozilla:thunderbird:*:*:*:*:esr:*:*:*",
                "matchCriteriaId": "F04F8674-52CC-4217-B94A-8C5E80C5B996",
                "versionEndExcluding": "140.6.0",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:*",
                "matchCriteriaId": "1CB46BC7-512D-45BF-BCF4-73FDDF94DBAF",
                "versionEndExcluding": "146.0",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "Same-origin policy bypass in the Request Handling component. This vulnerability was fixed in Firefox 146, Firefox ESR 115.31, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6."
      },
      {
        "lang": "es",
        "value": "Elusión de la política del mismo origen en el componente de gestión de solicitudes. Esta vulnerabilidad afecta a Firefox < 146, Firefox ESR < 115.31, Firefox ESR < 140.6, Thunderbird < 146, y Thunderbird < 140.6."
      }
    ],
    "id": "CVE-2025-14331",
    "lastModified": "2026-09-30T17:10:00.187",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 2.5,
          "source": "nvd@nist.gov",
          "type": "Primary"
        },
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 2.5,
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2025-14331",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "yes"
              },
              {
                "technicalImpact": "partial"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2025-12-09T16:59:10.319738Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2025-12-09T16:17:40.773",
    "references": [
      {
        "source": "security@mozilla.org",
        "tags": [
          "Issue Tracking",
          "Permissions Required"
        ],
        "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2000218"
      },
      {
        "source": "security@mozilla.org",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://www.mozilla.org/security/advisories/mfsa2025-92/"
      },
      {
        "source": "security@mozilla.org",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://www.mozilla.org/security/advisories/mfsa2025-93/"
      },
      {
        "source": "security@mozilla.org",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://www.mozilla.org/security/advisories/mfsa2025-94/"
      },
      {
        "source": "security@mozilla.org",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://www.mozilla.org/security/advisories/mfsa2025-95/"
      },
      {
        "source": "security@mozilla.org",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://www.mozilla.org/security/advisories/mfsa2025-96/"
      }
    ],
    "sourceIdentifier": "security@mozilla.org",
    "vulnStatus": "Modified",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-346"
          }
        ],
        "source": "nvd@nist.gov",
        "type": "Primary"
      },
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-346"
          }
        ],
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  }
}
—

vulnerability

firefox: thunderbird: Same-origin policy bypass in the Request Handling component
zetlyn/cve-redhat · 2025-12-09
cvss 6.1 packages firefox-0:140.6.0-1.el9_4, thunderbird-0:140.6.0-1.el10_0, thunderbird-0:140.6.0-1.el10_1, firefox-0:140.6.0-1.el9_0, firefox-0:140.6.0-1.el10_0, firefox-0:140.6.0-1.el9_2, firefox-0:140.6.0-1.el8_2, firefox-0:140.6.0-1.el10_1, firefox-0:140.6.0-1.el7_9, firefox-0:140.6.0-1.el9_7, thunderbird-0:140.6.0-1.el9_6, thunderbird-0:140.6.0-1.el8_6, thunderbird-0:140.6.0-1.el9_4, thunderbird-0:140.6.0-1.el8_4, thunderbird-0:140.6.0-1.el8_8, thunderbird-0:140.6.0-1.el9_7, thunderbird-0:140.6.0-1.el9_2, thunderbird-0:140.6.0-1.el8_2, thunderbird-0:140.6.0-1.el9_0, firefox-0:140.6.0-2.el9_6, firefox-0:140.6.0-2.el8_8, firefox-0:140.6.0-2.el8_4, firefox-0:140.6.0-2.el8_6, firefox-0:140.6.0-1.el8_10, thunderbird-0:140.6.0-1.el8_10 severity moderate source
Same-origin policy bypass in the Request Handling component. This vulnerability was fixed in Firefox 146, Firefox ESR 115.31, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6.
zetlyn/cve-nvd · 2025-12-09
cvss 6.5 product Firefox status Modified vendor Mozilla source