In JetBrains TeamCity before 2026.2, 2026.1.4, 2025.11.8 administrator account takeover was possible via password reset

zetlyn/cve-nvd vulnerability cve CVE-2026-100255 cpe cpe:2.3:a:jetbrains:teamcity:*:*:*:*:*:*:*:* known 2026-09-30

https://nvd.nist.gov/vuln/detail/CVE-2026-100255

Properties

automatable

At least one of those steps needs a person.

receipt

Source: NVD
Its words: no
Read by: field:cve.metrics.ssvcV203[].ssvcData.options[].automatable
Said since: 2026-10-06 12:31 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 12:31 UTC	no
2026-10-02 12:00 UTC	—

What the source handed over

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    "affected": [
      {
        "affectedData": [
          {
            "defaultStatus": "unaffected",
            "product": "TeamCity",
            "vendor": "JetBrains",
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    ],
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    "lastModified": "2026-10-02T20:46:45.227",
    "metrics": {
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}

cvss

9.8

receipt

Source: NVD
Its words: 9.8
Read by: field:cve.metrics.cvssMetricV31[type=Primary].cvssData.baseScore || field:cve.metrics.cvssMetricV31[].cvssData.baseScore
Said since: 2026-10-06 11:32 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 11:32 UTC	9.8
2026-10-02 12:00 UTC	8.1

What the source handed over

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    "lastModified": "2026-10-02T20:46:45.227",
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cvss_vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

receipt

Source: NVD
Its words: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Read by: field:cve.metrics.cvssMetricV31[type=Primary].cvssData.vectorString || field:cve.metrics.cvssMetricV31[].cvssData.vectorString
Said since: 2026-10-06 12:31 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 12:31 UTC	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
2026-10-02 12:00 UTC	—

What the source handed over

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      {
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            "product": "TeamCity",
            "vendor": "JetBrains",
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}

cwe

CWE-1289

receipt

Source: NVD
Its words: CWE-1289
Read by: field:cve.weaknesses[].description[].value
Said since: 2026-10-06 12:31 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 12:31 UTC	CWE-1289
2026-10-02 12:00 UTC	—

What the source handed over

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}

exploitation

none

No evidence of exploitation, and no public proof of concept.

receipt

Source: NVD
Its words: none
Read by: field:cve.metrics.ssvcV203[].ssvcData.options[].exploitation
Said since: 2026-10-06 12:31 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 12:31 UTC	none
2026-10-02 12:00 UTC	—

What the source handed over

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      {
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            "defaultStatus": "unaffected",
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            "vendor": "JetBrains",
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              {
                "lessThan": "2026.2, \n2026.1.4, \n2025.11.8",
                "status": "affected",
                "version": "0",
                "versionType": "semver"
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      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-100255",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "total"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-30T00:00:00+00:00",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-30T16:16:56.100",
    "references": [
      {
        "source": "cve@jetbrains.com",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://www.jetbrains.com/privacy-security/issues-fixed/"
      }
    ],
    "sourceIdentifier": "cve@jetbrains.com",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-1289"
          }
        ],
        "source": "cve@jetbrains.com",
        "type": "Secondary"
      }
    ]
  }
}

product

TeamCity

receipt

Source: NVD
Its words: TeamCity
Read by: field:cve.affected[].affectedData[].product
Said since: 2026-10-02 12:00 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "defaultStatus": "unaffected",
            "product": "TeamCity",
            "vendor": "JetBrains",
            "versions": [
              {
                "lessThan": "2026.2, \n2026.1.4, \n2025.11.8",
                "status": "affected",
                "version": "0",
                "versionType": "semver"
              }
            ]
          }
        ],
        "source": "cve@jetbrains.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:jetbrains:teamcity:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "90B7BA91-8570-4A95-9C06-ABC6182E00A8",
                "versionEndExcluding": "2025.11.8",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:jetbrains:teamcity:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "E68D7A2A-EDCD-4BEF-B205-F6000B6A9AA9",
                "versionEndExcluding": "2026.1.4",
                "versionStartIncluding": "2026.1",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "In JetBrains TeamCity before 2026.2, \n2026.1.4, \n2025.11.8 administrator account takeover was possible via password reset"
      }
    ],
    "id": "CVE-2026-100255",
    "lastModified": "2026-10-02T20:46:45.227",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 2.2,
          "impactScore": 5.9,
          "source": "cve@jetbrains.com",
          "type": "Secondary"
        },
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 5.9,
          "source": "nvd@nist.gov",
          "type": "Primary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-100255",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "total"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-30T00:00:00+00:00",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-30T16:16:56.100",
    "references": [
      {
        "source": "cve@jetbrains.com",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://www.jetbrains.com/privacy-security/issues-fixed/"
      }
    ],
    "sourceIdentifier": "cve@jetbrains.com",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-1289"
          }
        ],
        "source": "cve@jetbrains.com",
        "type": "Secondary"
      }
    ]
  }
}

severity

CRITICAL

From the CVSS base score at 9.0 and above.

receipt

Source: NVD
Its words: CRITICAL
Read by: field:cve.metrics.cvssMetricV31[type=Primary].cvssData.baseSeverity || field:cve.metrics.cvssMetricV31[].cvssData.baseSeverity
Said since: 2026-10-06 12:31 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 12:31 UTC	CRITICAL
2026-10-02 12:00 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "defaultStatus": "unaffected",
            "product": "TeamCity",
            "vendor": "JetBrains",
            "versions": [
              {
                "lessThan": "2026.2, \n2026.1.4, \n2025.11.8",
                "status": "affected",
                "version": "0",
                "versionType": "semver"
              }
            ]
          }
        ],
        "source": "cve@jetbrains.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:jetbrains:teamcity:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "90B7BA91-8570-4A95-9C06-ABC6182E00A8",
                "versionEndExcluding": "2025.11.8",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:jetbrains:teamcity:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "E68D7A2A-EDCD-4BEF-B205-F6000B6A9AA9",
                "versionEndExcluding": "2026.1.4",
                "versionStartIncluding": "2026.1",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "In JetBrains TeamCity before 2026.2, \n2026.1.4, \n2025.11.8 administrator account takeover was possible via password reset"
      }
    ],
    "id": "CVE-2026-100255",
    "lastModified": "2026-10-02T20:46:45.227",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 2.2,
          "impactScore": 5.9,
          "source": "cve@jetbrains.com",
          "type": "Secondary"
        },
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 5.9,
          "source": "nvd@nist.gov",
          "type": "Primary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-100255",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "total"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-30T00:00:00+00:00",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-30T16:16:56.100",
    "references": [
      {
        "source": "cve@jetbrains.com",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://www.jetbrains.com/privacy-security/issues-fixed/"
      }
    ],
    "sourceIdentifier": "cve@jetbrains.com",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-1289"
          }
        ],
        "source": "cve@jetbrains.com",
        "type": "Secondary"
      }
    ]
  }
}

status

Analyzed

receipt

Source: NVD
Its words: Analyzed
Read by: field:cve.vulnStatus
Said since: 2026-10-03 00:06 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-03 00:06 UTC	Analyzed
2026-10-02 12:00 UTC	Undergoing Analysis

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "defaultStatus": "unaffected",
            "product": "TeamCity",
            "vendor": "JetBrains",
            "versions": [
              {
                "lessThan": "2026.2, \n2026.1.4, \n2025.11.8",
                "status": "affected",
                "version": "0",
                "versionType": "semver"
              }
            ]
          }
        ],
        "source": "cve@jetbrains.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:jetbrains:teamcity:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "90B7BA91-8570-4A95-9C06-ABC6182E00A8",
                "versionEndExcluding": "2025.11.8",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:jetbrains:teamcity:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "E68D7A2A-EDCD-4BEF-B205-F6000B6A9AA9",
                "versionEndExcluding": "2026.1.4",
                "versionStartIncluding": "2026.1",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "In JetBrains TeamCity before 2026.2, \n2026.1.4, \n2025.11.8 administrator account takeover was possible via password reset"
      }
    ],
    "id": "CVE-2026-100255",
    "lastModified": "2026-10-02T20:46:45.227",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 2.2,
          "impactScore": 5.9,
          "source": "cve@jetbrains.com",
          "type": "Secondary"
        },
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 5.9,
          "source": "nvd@nist.gov",
          "type": "Primary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-100255",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "total"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-30T00:00:00+00:00",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-30T16:16:56.100",
    "references": [
      {
        "source": "cve@jetbrains.com",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://www.jetbrains.com/privacy-security/issues-fixed/"
      }
    ],
    "sourceIdentifier": "cve@jetbrains.com",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-1289"
          }
        ],
        "source": "cve@jetbrains.com",
        "type": "Secondary"
      }
    ]
  }
}

technical_impact

total

The attacker gains full control of the component, or all of its information.

receipt

Source: NVD
Its words: total
Read by: field:cve.metrics.ssvcV203[].ssvcData.options[].technicalImpact
Said since: 2026-10-06 12:31 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

2026-10-06 12:31 UTC	total
2026-10-02 12:00 UTC	—

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "defaultStatus": "unaffected",
            "product": "TeamCity",
            "vendor": "JetBrains",
            "versions": [
              {
                "lessThan": "2026.2, \n2026.1.4, \n2025.11.8",
                "status": "affected",
                "version": "0",
                "versionType": "semver"
              }
            ]
          }
        ],
        "source": "cve@jetbrains.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:jetbrains:teamcity:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "90B7BA91-8570-4A95-9C06-ABC6182E00A8",
                "versionEndExcluding": "2025.11.8",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:jetbrains:teamcity:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "E68D7A2A-EDCD-4BEF-B205-F6000B6A9AA9",
                "versionEndExcluding": "2026.1.4",
                "versionStartIncluding": "2026.1",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "In JetBrains TeamCity before 2026.2, \n2026.1.4, \n2025.11.8 administrator account takeover was possible via password reset"
      }
    ],
    "id": "CVE-2026-100255",
    "lastModified": "2026-10-02T20:46:45.227",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 2.2,
          "impactScore": 5.9,
          "source": "cve@jetbrains.com",
          "type": "Secondary"
        },
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 5.9,
          "source": "nvd@nist.gov",
          "type": "Primary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-100255",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "total"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-30T00:00:00+00:00",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-30T16:16:56.100",
    "references": [
      {
        "source": "cve@jetbrains.com",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://www.jetbrains.com/privacy-security/issues-fixed/"
      }
    ],
    "sourceIdentifier": "cve@jetbrains.com",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-1289"
          }
        ],
        "source": "cve@jetbrains.com",
        "type": "Secondary"
      }
    ]
  }
}

vendor

JetBrains

receipt

Source: NVD
Its words: JetBrains
Read by: field:cve.affected[].affectedData[].vendor
Said since: 2026-10-02 12:00 UTC
Last answered: 2026-10-06 12:41 UTC
Original: open at the source

What the source handed over

{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "defaultStatus": "unaffected",
            "product": "TeamCity",
            "vendor": "JetBrains",
            "versions": [
              {
                "lessThan": "2026.2, \n2026.1.4, \n2025.11.8",
                "status": "affected",
                "version": "0",
                "versionType": "semver"
              }
            ]
          }
        ],
        "source": "cve@jetbrains.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:jetbrains:teamcity:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "90B7BA91-8570-4A95-9C06-ABC6182E00A8",
                "versionEndExcluding": "2025.11.8",
                "vulnerable": true
              },
              {
                "criteria": "cpe:2.3:a:jetbrains:teamcity:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "E68D7A2A-EDCD-4BEF-B205-F6000B6A9AA9",
                "versionEndExcluding": "2026.1.4",
                "versionStartIncluding": "2026.1",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "In JetBrains TeamCity before 2026.2, \n2026.1.4, \n2025.11.8 administrator account takeover was possible via password reset"
      }
    ],
    "id": "CVE-2026-100255",
    "lastModified": "2026-10-02T20:46:45.227",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 2.2,
          "impactScore": 5.9,
          "source": "cve@jetbrains.com",
          "type": "Secondary"
        },
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 5.9,
          "source": "nvd@nist.gov",
          "type": "Primary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-100255",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "total"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-30T00:00:00+00:00",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-30T16:16:56.100",
    "references": [
      {
        "source": "cve@jetbrains.com",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://www.jetbrains.com/privacy-security/issues-fixed/"
      }
    ],
    "sourceIdentifier": "cve@jetbrains.com",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-1289"
          }
        ],
        "source": "cve@jetbrains.com",
        "type": "Secondary"
      }
    ]
  }
}

Text

In JetBrains TeamCity before 2026.2, 2026.1.4, 2025.11.8 administrator account takeover was possible via password reset