The Okta Access Gateway does not sanitize the application label field before including it in the generated nginx configuration file. The uns…

cve CVE-2026-78545 1 source, 1 claim · Watch

NVD writes:
The Okta Access Gateway does not sanitize the application label field before including it in the generated nginx configuration file. The unsanitized value is interpolated into an nginx server block directive, resulting in execution of injected directives. the claim
Severity
HIGH NVD
CVSS
7.2 NVD
Fixed in
2026.9.1 NVD
Vendor
Okta NVD
Product
Okta Access Gateway NVD
CWE
CWE-94 NVD

How far exploitation has got

  1. No public code known
  2. Proof of concept
  3. Proof of concept, verified
  4. A Metasploit module
  5. Exploited in the wild
  6. Used in ransomware campaigns

Timeline

2026-09-08first spoke of it: The Okta Access Gateway does not sanitize the application label field before including it in the generated nginx configuration file. The unsanitized value is interpolated into an nginx server block directive, resulting in execution of injected directives.NVD

The Okta Access Gateway does not sanitize the application label field before including it in the generated nginx configuration file. The unsanitized value is interpolated into an nginx server block directive, resulting in execution of injected directives.

What it is to other things

affectsokta/access_gateway
NVD
made_byokta
NVD

In words only, so not counted until a person confirms one:

affectsokta/okta_access_gateway
NVD says “Okta · Okta Access Gateway”
Every value, with what each source said and its receipt
PropertySourceSaidMeans here
Automatable
automatable
NVDno
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 UTCno
2026-09-29 09:45 UTC—
What the source handed over
{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "defaultStatus": "unaffected",
            "product": "Okta Access Gateway",
            "vendor": "Okta",
            "versions": [
              {
                "lessThan": "2026.9.1",
                "status": "affected",
                "version": "0",
                "versionType": "semver"
              }
            ]
          }
        ],
        "source": "psirt@okta.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:okta:access_gateway:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "C169A22F-2C3D-40B8-B3E7-1EEEAE47D950",
                "versionEndExcluding": "2026.9.1",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "The Okta Access Gateway does not sanitize the application label field before including it in the generated nginx configuration file. The unsanitized value is interpolated into an nginx server block directive, resulting in execution of injected directives."
      }
    ],
    "id": "CVE-2026-78545",
    "lastModified": "2026-09-29T20:19:22.983",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.6,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
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          "source": "psirt@okta.com",
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      ],
      "ssvcV203": [
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              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-10T18:00:45.406892Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-08T20:18:35.727",
    "references": [
      {
        "source": "psirt@okta.com",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://trust.okta.com/security-advisories/improper-input-sanitization-in-okta-access-gateway-application-label-configuration-cve-2026-78545/"
      }
    ],
    "sourceIdentifier": "psirt@okta.com",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-94"
          }
        ],
        "source": "psirt@okta.com",
        "type": "Secondary"
      }
    ]
  }
}
—
CVSS
cvss
NVD7.2
receipt
Source
NVD
Its words
7.2
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 UTC7.2
2026-09-29 09:45 UTC6.6
What the source handed over
{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "defaultStatus": "unaffected",
            "product": "Okta Access Gateway",
            "vendor": "Okta",
            "versions": [
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                "lessThan": "2026.9.1",
                "status": "affected",
                "version": "0",
                "versionType": "semver"
              }
            ]
          }
        ],
        "source": "psirt@okta.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:okta:access_gateway:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "C169A22F-2C3D-40B8-B3E7-1EEEAE47D950",
                "versionEndExcluding": "2026.9.1",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "The Okta Access Gateway does not sanitize the application label field before including it in the generated nginx configuration file. The unsanitized value is interpolated into an nginx server block directive, resulting in execution of injected directives."
      }
    ],
    "id": "CVE-2026-78545",
    "lastModified": "2026-09-29T20:19:22.983",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.6,
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            "confidentialityImpact": "HIGH",
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            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 0.7,
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          "type": "Secondary"
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          "cvssData": {
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            "userInteraction": "NONE",
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            "version": "3.1"
          },
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      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
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            "role": "CISA Coordinator",
            "timestamp": "2026-09-10T18:00:45.406892Z",
            "version": "2.0.3"
          }
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    },
    "published": "2026-09-08T20:18:35.727",
    "references": [
      {
        "source": "psirt@okta.com",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://trust.okta.com/security-advisories/improper-input-sanitization-in-okta-access-gateway-application-label-configuration-cve-2026-78545/"
      }
    ],
    "sourceIdentifier": "psirt@okta.com",
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          }
        ],
        "source": "psirt@okta.com",
        "type": "Secondary"
      }
    ]
  }
}
—
CVSS vector
cvss_vector
NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
receipt
Source
NVD
Its words
CVSS:3.1/AV:N/AC:L/PR:H/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 UTCCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
2026-09-29 09:45 UTC—
What the source handed over
{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "defaultStatus": "unaffected",
            "product": "Okta Access Gateway",
            "vendor": "Okta",
            "versions": [
              {
                "lessThan": "2026.9.1",
                "status": "affected",
                "version": "0",
                "versionType": "semver"
              }
            ]
          }
        ],
        "source": "psirt@okta.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:okta:access_gateway:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "C169A22F-2C3D-40B8-B3E7-1EEEAE47D950",
                "versionEndExcluding": "2026.9.1",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "The Okta Access Gateway does not sanitize the application label field before including it in the generated nginx configuration file. The unsanitized value is interpolated into an nginx server block directive, resulting in execution of injected directives."
      }
    ],
    "id": "CVE-2026-78545",
    "lastModified": "2026-09-29T20:19:22.983",
    "metrics": {
      "cvssMetricV31": [
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            "integrityImpact": "HIGH",
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            "version": "3.1"
          },
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      ],
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    ]
  }
}
—
CWE
cwe
NVDCWE-94
receipt
Source
NVD
Its words
CWE-94
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 UTCCWE-94
2026-09-29 09:45 UTC—
What the source handed over
{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "defaultStatus": "unaffected",
            "product": "Okta Access Gateway",
            "vendor": "Okta",
            "versions": [
              {
                "lessThan": "2026.9.1",
                "status": "affected",
                "version": "0",
                "versionType": "semver"
              }
            ]
          }
        ],
        "source": "psirt@okta.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:okta:access_gateway:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "C169A22F-2C3D-40B8-B3E7-1EEEAE47D950",
                "versionEndExcluding": "2026.9.1",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "The Okta Access Gateway does not sanitize the application label field before including it in the generated nginx configuration file. The unsanitized value is interpolated into an nginx server block directive, resulting in execution of injected directives."
      }
    ],
    "id": "CVE-2026-78545",
    "lastModified": "2026-09-29T20:19:22.983",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
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  }
}
—
Exploitation
exploitation
NVDnone
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 UTCnone
2026-09-29 09:45 UTC—
What the source handed over
{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "defaultStatus": "unaffected",
            "product": "Okta Access Gateway",
            "vendor": "Okta",
            "versions": [
              {
                "lessThan": "2026.9.1",
                "status": "affected",
                "version": "0",
                "versionType": "semver"
              }
            ]
          }
        ],
        "source": "psirt@okta.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:okta:access_gateway:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "C169A22F-2C3D-40B8-B3E7-1EEEAE47D950",
                "versionEndExcluding": "2026.9.1",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "The Okta Access Gateway does not sanitize the application label field before including it in the generated nginx configuration file. The unsanitized value is interpolated into an nginx server block directive, resulting in execution of injected directives."
      }
    ],
    "id": "CVE-2026-78545",
    "lastModified": "2026-09-29T20:19:22.983",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
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            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H",
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            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
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          "impactScore": 5.9,
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      "ssvcV203": [
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  }
}
—
Fixed in
fixed_in
NVD2026.9.1
receipt
Source
NVD
Its words
2026.9.1
Read by
field:cve.affected[].affectedData[].versions[status=affected].lessThan
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 UTC2026.9.1
2026-09-29 09:45 UTC—
What the source handed over
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              }
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        ],
        "source": "psirt@okta.com"
      }
    ],
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              }
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          }
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      }
    ],
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    ],
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    "lastModified": "2026-09-29T20:19:22.983",
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  }
}
—
Product
product
NVDOkta Access Gateway
receipt
Source
NVD
Its words
Okta Access Gateway
Read by
field:cve.affected[].affectedData[].product
Said since
2026-09-29 17:49 UTC
Last answered
2026-10-06 12:41 UTC
Original
open at the source
2026-09-29 17:49 UTCOkta Access Gateway
2026-09-29 09:45 UTC—
What the source handed over
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      {
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                "vulnerable": true
              }
            ],
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      }
    ],
    "id": "CVE-2026-78545",
    "lastModified": "2026-09-29T20:19:22.983",
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}
—
Severity
severity
NVDHIGH
From 7.0 to 8.9.
receipt
Source
NVD
Its words
HIGH
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 UTCHIGH
2026-09-29 09:45 UTC—
What the source handed over
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                "versionType": "semver"
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            ]
          }
        ],
        "source": "psirt@okta.com"
      }
    ],
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          }
        ]
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      }
    ],
    "id": "CVE-2026-78545",
    "lastModified": "2026-09-29T20:19:22.983",
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}
high
Status
status
NVDAnalyzed
receipt
Source
NVD
Its words
Analyzed
Read by
field:cve.vulnStatus
Said since
2026-10-02 12:00 UTC
Last answered
2026-10-06 12:41 UTC
Original
open at the source
2026-10-02 12:00 UTCAnalyzed
2026-09-29 09:45 UTCUndergoing Analysis
What the source handed over
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    ],
    "id": "CVE-2026-78545",
    "lastModified": "2026-09-29T20:19:22.983",
    "metrics": {
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  }
}
—
Technical impact
technical_impact
NVDtotal
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 UTCtotal
2026-09-29 09:45 UTC—
What the source handed over
{
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      {
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          {
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      }
    ],
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    "lastModified": "2026-09-29T20:19:22.983",
    "metrics": {
      "cvssMetricV31": [
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      ]
    },
    "published": "2026-09-08T20:18:35.727",
    "references": [
      {
        "source": "psirt@okta.com",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://trust.okta.com/security-advisories/improper-input-sanitization-in-okta-access-gateway-application-label-configuration-cve-2026-78545/"
      }
    ],
    "sourceIdentifier": "psirt@okta.com",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-94"
          }
        ],
        "source": "psirt@okta.com",
        "type": "Secondary"
      }
    ]
  }
}
—
Vendor
vendor
NVDOkta
receipt
Source
NVD
Its words
Okta
Read by
field:cve.affected[].affectedData[].vendor
Said since
2026-09-29 17:49 UTC
Last answered
2026-10-06 12:41 UTC
Original
open at the source
2026-09-29 17:49 UTCOkta
2026-09-29 09:45 UTC—
What the source handed over
{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
            "defaultStatus": "unaffected",
            "product": "Okta Access Gateway",
            "vendor": "Okta",
            "versions": [
              {
                "lessThan": "2026.9.1",
                "status": "affected",
                "version": "0",
                "versionType": "semver"
              }
            ]
          }
        ],
        "source": "psirt@okta.com"
      }
    ],
    "configurations": [
      {
        "nodes": [
          {
            "cpeMatch": [
              {
                "criteria": "cpe:2.3:a:okta:access_gateway:*:*:*:*:*:*:*:*",
                "matchCriteriaId": "C169A22F-2C3D-40B8-B3E7-1EEEAE47D950",
                "versionEndExcluding": "2026.9.1",
                "vulnerable": true
              }
            ],
            "negate": false,
            "operator": "OR"
          }
        ]
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "The Okta Access Gateway does not sanitize the application label field before including it in the generated nginx configuration file. The unsanitized value is interpolated into an nginx server block directive, resulting in execution of injected directives."
      }
    ],
    "id": "CVE-2026-78545",
    "lastModified": "2026-09-29T20:19:22.983",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.6,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 0.7,
          "impactScore": 5.9,
          "source": "psirt@okta.com",
          "type": "Secondary"
        },
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.2,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 1.2,
          "impactScore": 5.9,
          "source": "nvd@nist.gov",
          "type": "Primary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-78545",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "no"
              },
              {
                "technicalImpact": "total"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-09-10T18:00:45.406892Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-09-08T20:18:35.727",
    "references": [
      {
        "source": "psirt@okta.com",
        "tags": [
          "Vendor Advisory"
        ],
        "url": "https://trust.okta.com/security-advisories/improper-input-sanitization-in-okta-access-gateway-application-label-configuration-cve-2026-78545/"
      }
    ],
    "sourceIdentifier": "psirt@okta.com",
    "vulnStatus": "Analyzed",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-94"
          }
        ],
        "source": "psirt@okta.com",
        "type": "Secondary"
      }
    ]
  }
}
—
Every claim, by kind

vulnerability

The Okta Access Gateway does not sanitize the application label field before including it in the generated nginx configuration file. The unsanitized value is interpolated into an nginx server block directive, resulting in execution of injected directives.
zetlyn/cve-nvd · 2026-09-08
automatable no cvss 7.2 cvss_vector CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H cwe CWE-94 exploitation none fixed_in 2026.9.1 product Okta Access Gateway severity HIGH status Analyzed technical_impact total vendor Okta source