Vulnerability-Lookup

CVE-2026-66901 (GCVE-0-2026-66901)

Vulnerability from cvelistv5 – Published: 2026-08-04 20:49 – Updated: 2026-08-05 19:26

Title

Google::Auth versions before 0.09 for Perl allow server side request forgery and credential exfiltration via unvalidated URLs taken from the credentials JSON

Summary

Google::Auth versions before 0.09 for Perl allow server side request forgery and credential exfiltration via unvalidated URLs taken from the credentials JSON. The URLs the library requests are read from the credentials JSON, and their hosts were not checked against the universe domain before the request. For an external_account configuration, retrieve_subject_token fetched credential_source.url with headers from the same JSON, and fetch_access_token posted the subject token to token_url, then sent the STS access token it received to service_account_impersonation_url in an Authorization: Bearer header. The authorized_user, impersonated_service_account and service_account configurations posted the client secret and refresh token, the source access token, and a signed JWT assertion to their own JSON-supplied token_uri or impersonation URL. Any caller that builds credentials from a configuration it does not fully control issues those requests from the application's network position, reaching hosts the configuration names, including internal services and link-local metadata endpoints, and hands them the credentials each request carries. The service_account assertion is bound to aud, so it is not replayable against Google. Version 0.06 added a _validate_url host check to the external_account class, keyed on a universe_domain read from the same credentials JSON. Version 0.07 gated a JSON-supplied universe domain behind GOOGLE_EXTERNAL_ACCOUNT_ALLOW_CUSTOM_UNIVERSES=1, deriving the pin flag from arguments that an earlier BUILDARGS pass had already merged on the make_creds path. Version 0.08 passed the pin decision through as an explicit constructor argument and moved _validate_url to Google::Auth::Credentials, adding the call to UserRefreshCredentials and ImpersonatedServiceAccountCredentials, and 0.09 added it to ServiceAccountCredentials.

Severity

7.5 (High)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-05 19:26 UTC

CWE

CWE-918 - Server-Side Request Forgery (SSRF)
CWE-201 - Insertion of Sensitive Information Into Sent Data

Assigner

CPANSec CNA under the redhat root

CNA scorecard C 61/100 over 359 records in the last 180 days details

References

6 references

URL	Tags
https://github.com/GoogleCloudPlatform/google-aut…	patch
https://github.com/GoogleCloudPlatform/google-aut…	patch
https://github.com/GoogleCloudPlatform/google-aut…	patch
https://github.com/GoogleCloudPlatform/google-aut…	patch
https://metacpan.org/release/CJCOLLIER/Google-Aut…	release-notes
http://www.openwall.com/lists/oss-security/2026/0…

Impacted products

1 product

Vendor	Product	Version	CPE status
CJCOLLIER	Google::Auth	Affected: 0 , < 0.09 (custom)	guessed

Show details on NVD website

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            {
              "lang": "en",
              "value": "Google::Auth versions before 0.09 for Perl allow server side request forgery and credential exfiltration via unvalidated URLs taken from the credentials JSON.\n\nThe URLs the library requests are read from the credentials JSON, and their hosts were not checked against the universe domain before the request. For an external_account configuration, retrieve_subject_token fetched credential_source.url with headers from the same JSON, and fetch_access_token posted the subject token to token_url, then sent the STS access token it received to service_account_impersonation_url in an Authorization: Bearer header. The authorized_user, impersonated_service_account and service_account configurations posted the client secret and refresh token, the source access token, and a signed JWT assertion to their own JSON-supplied token_uri or impersonation URL.\n\nAny caller that builds credentials from a configuration it does not fully control issues those requests from the application\u0027s network position, reaching hosts the configuration names, including internal services and link-local metadata endpoints, and hands them the credentials each request carries. The service_account assertion is bound to aud, so it is not replayable against Google.\n\nVersion 0.06 added a _validate_url host check to the external_account class, keyed on a universe_domain read from the same credentials JSON. Version 0.07 gated a JSON-supplied universe domain behind GOOGLE_EXTERNAL_ACCOUNT_ALLOW_CUSTOM_UNIVERSES=1, deriving the pin flag from arguments that an earlier BUILDARGS pass had already merged on the make_creds path. Version 0.08 passed the pin decision through as an explicit constructor argument and moved _validate_url to Google::Auth::Credentials, adding the call to UserRefreshCredentials and ImpersonatedServiceAccountCredentials, and 0.09 added it to ServiceAccountCredentials."
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-918",
                  "description": "CWE-918 Server-Side Request Forgery (SSRF)",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            },
            {
              "descriptions": [
                {
                  "cweId": "CWE-201",
                  "description": "CWE-201 Insertion of Sensitive Information Into Sent Data",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-08-04T20:49:27.643Z",
            "orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
            "shortName": "CPANSec"
          },
          "references": [
            {
              "tags": [
                "patch"
              ],
              "url": "https://github.com/GoogleCloudPlatform/google-auth-library-perl/commit/c95c77e70bec94f17e239d88050f843ea1cade95.patch"
            },
            {
              "tags": [
                "patch"
              ],
              "url": "https://github.com/GoogleCloudPlatform/google-auth-library-perl/commit/cd42bdef53afcc4531161e85e91d0d5997e01324.patch"
            },
            {
              "tags": [
                "patch"
              ],
              "url": "https://github.com/GoogleCloudPlatform/google-auth-library-perl/commit/9b5157062acc605ca9e6c507b910587f4829ce9e.patch"
            },
            {
              "tags": [
                "patch"
              ],
              "url": "https://github.com/GoogleCloudPlatform/google-auth-library-perl/commit/cbbb07804e3f8cc7cf9638ecc9c2097d80a9ef50.patch"
            },
            {
              "tags": [
                "release-notes"
              ],
              "url": "https://metacpan.org/release/CJCOLLIER/Google-Auth-0.09/changes"
            }
          ],
          "solutions": [
            {
              "lang": "en",
              "value": "Upgrade to Google-Auth 0.09 or later, which validates each URL host against googleapis.com or a universe domain pinned by the application before the request."
            }
          ],
          "source": {
            "discovery": "UNKNOWN"
          },
          "timeline": [
            {
              "lang": "en",
              "time": "2026-07-28T00:00:00.000Z",
              "value": "Version 0.06 released with a partial fix."
            },
            {
              "lang": "en",
              "time": "2026-08-02T00:00:00.000Z",
              "value": "Version 0.08 released, extending the fix to two further credential classes."
            },
            {
              "lang": "en",
              "time": "2026-08-03T00:00:00.000Z",
              "value": "Version 0.09 released with the complete fix."
            }
          ],
          "title": "Google::Auth versions before 0.09 for Perl allow server side request forgery and credential exfiltration via unvalidated URLs taken from the credentials JSON",
          "workarounds": [
            {
              "lang": "en",
              "value": "For deployments that cannot upgrade to 0.09, ensure that every credentials configuration reaching the Application Default Credentials flow comes from a trusted source."
            }
          ],
          "x_generator": {
            "engine": "cpansec-cna-tool 0.1"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
        "assignerShortName": "CPANSec",
        "cveId": "CVE-2026-66901",
        "datePublished": "2026-08-04T20:49:27.643Z",
        "dateReserved": "2026-07-28T08:28:27.249Z",
        "dateUpdated": "2026-08-05T19:26:51.006Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}

FKIE_CVE-2026-66901

Vulnerability from fkie_nvd - Published: 2026-08-04 21:16 - Updated: 2026-10-24 16:10

Severity

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Summary

References

	URL	Tags
	9b29abf9-4ab0-4765-b253-1875cd9b441e	https://github.com/GoogleCloudPlatform/google-auth-library-perl/commit/9b5157062acc605ca9e6c507b910587f4829ce9e.patch
	9b29abf9-4ab0-4765-b253-1875cd9b441e	https://github.com/GoogleCloudPlatform/google-auth-library-perl/commit/c95c77e70bec94f17e239d88050f843ea1cade95.patch
	9b29abf9-4ab0-4765-b253-1875cd9b441e	https://github.com/GoogleCloudPlatform/google-auth-library-perl/commit/cbbb07804e3f8cc7cf9638ecc9c2097d80a9ef50.patch
	9b29abf9-4ab0-4765-b253-1875cd9b441e	https://github.com/GoogleCloudPlatform/google-auth-library-perl/commit/cd42bdef53afcc4531161e85e91d0d5997e01324.patch
	9b29abf9-4ab0-4765-b253-1875cd9b441e	https://metacpan.org/release/CJCOLLIER/Google-Auth-0.09/changes
	af854a3a-2127-422b-91ae-364da2661108	http://www.openwall.com/lists/oss-security/2026/08/04/34

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "collectionURL": "https://cpan.org/modules",
          "defaultStatus": "unaffected",
          "packageName": "Google-Auth",
          "product": "Google::Auth",
          "programFiles": [
            "lib/Google/Auth/ExternalAccountCredentials.pm",
            "lib/Google/Auth/ServiceAccountCredentials.pm",
            "lib/Google/Auth/UserRefreshCredentials.pm",
            "lib/Google/Auth/ImpersonatedServiceAccountCredentials.pm"
          ],
          "programRoutines": [
            {
              "name": "Google::Auth::ExternalAccountCredentials::retrieve_subject_token"
            },
            {
              "name": "Google::Auth::ExternalAccountCredentials::fetch_access_token"
            },
            {
              "name": "Google::Auth::ServiceAccountCredentials::fetch_access_token"
            },
            {
              "name": "Google::Auth::UserRefreshCredentials::fetch_access_token"
            },
            {
              "name": "Google::Auth::ImpersonatedServiceAccountCredentials::fetch_access_token"
            }
          ],
          "repo": "https://github.com/GoogleCloudPlatform/google-auth-library-perl",
          "vendor": "CJCOLLIER",
          "versions": [
            {
              "lessThan": "0.09",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Google::Auth versions before 0.09 for Perl allow server side request forgery and credential exfiltration via unvalidated URLs taken from the credentials JSON.\n\nThe URLs the library requests are read from the credentials JSON, and their hosts were not checked against the universe domain before the request. For an external_account configuration, retrieve_subject_token fetched credential_source.url with headers from the same JSON, and fetch_access_token posted the subject token to token_url, then sent the STS access token it received to service_account_impersonation_url in an Authorization: Bearer header. The authorized_user, impersonated_service_account and service_account configurations posted the client secret and refresh token, the source access token, and a signed JWT assertion to their own JSON-supplied token_uri or impersonation URL.\n\nAny caller that builds credentials from a configuration it does not fully control issues those requests from the application\u0027s network position, reaching hosts the configuration names, including internal services and link-local metadata endpoints, and hands them the credentials each request carries. The service_account assertion is bound to aud, so it is not replayable against Google.\n\nVersion 0.06 added a _validate_url host check to the external_account class, keyed on a universe_domain read from the same credentials JSON. Version 0.07 gated a JSON-supplied universe domain behind GOOGLE_EXTERNAL_ACCOUNT_ALLOW_CUSTOM_UNIVERSES=1, deriving the pin flag from arguments that an earlier BUILDARGS pass had already merged on the make_creds path. Version 0.08 passed the pin decision through as an explicit constructor argument and moved _validate_url to Google::Auth::Credentials, adding the call to UserRefreshCredentials and ImpersonatedServiceAccountCredentials, and 0.09 added it to ServiceAccountCredentials."
    },
    {
      "lang": "es",
      "value": "Las versiones de Google::Auth anteriores a la 0.09 para Perl permiten la falsificaci\u00f3n de solicitudes del lado del servidor y la exfiltraci\u00f3n de credenciales a trav\u00e9s de URLs no validadas tomadas del JSON de credenciales.\n\nLas URLs que la biblioteca solicita se leen del JSON de credenciales, y sus hosts no se verificaban contra el dominio del universo antes de la solicitud. Para una configuraci\u00f3n de external_account, retrieve_subject_token obten\u00eda credential_source.url con encabezados del mismo JSON, y fetch_access_token publicaba el token de sujeto en token_url, luego enviaba el token de acceso STS que recib\u00eda a service_account_impersonation_url en un encabezado Authorization: Bearer. Las configuraciones de authorized_user, impersonated_service_account y service_account publicaban el secreto del cliente y el token de actualizaci\u00f3n, el token de acceso de origen, y una aserci\u00f3n JWT firmada a su propia token_uri o URL de suplantaci\u00f3n suministrada por JSON.\n\nCualquier llamador que construye credenciales a partir de una configuraci\u00f3n que no controla completamente emite esas solicitudes desde la posici\u00f3n de red de la aplicaci\u00f3n, alcanzando hosts que la configuraci\u00f3n nombra, incluyendo servicios internos y puntos finales de metadatos link-local, y les entrega las credenciales que cada solicitud lleva. La aserci\u00f3n de service_account est\u00e1 vinculada a aud, por lo que no es reproducible contra Google.\n\nLa versi\u00f3n 0.06 a\u00f1adi\u00f3 una verificaci\u00f3n de host _validate_url a la clase external_account, basada en un universe_domain le\u00eddo del mismo JSON de credenciales. La versi\u00f3n 0.07 restringi\u00f3 un dominio de universo suministrado por JSON detr\u00e1s de GOOGLE_EXTERNAL_ACCOUNT_ALLOW_CUSTOM_UNIVERSES=1, derivando el indicador de pin de argumentos que un pase BUILDARGS anterior ya hab\u00eda fusionado en la ruta make_creds. La versi\u00f3n 0.08 pas\u00f3 la decisi\u00f3n del pin como un argumento expl\u00edcito del constructor y movi\u00f3 _validate_url a Google::Auth::Credentials, a\u00f1adiendo la llamada a UserRefreshCredentials e ImpersonatedServiceAccountCredentials, y la 0.09 la a\u00f1adi\u00f3 a ServiceAccountCredentials."
    }
  ],
  "id": "CVE-2026-66901",
  "lastModified": "2026-10-24T16:10:00.153",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-66901",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-08-05T19:26:34.144392Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-08-04T21:16:37.127",
  "references": [
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "url": "https://github.com/GoogleCloudPlatform/google-auth-library-perl/commit/9b5157062acc605ca9e6c507b910587f4829ce9e.patch"
    },
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "url": "https://github.com/GoogleCloudPlatform/google-auth-library-perl/commit/c95c77e70bec94f17e239d88050f843ea1cade95.patch"
    },
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "url": "https://github.com/GoogleCloudPlatform/google-auth-library-perl/commit/cbbb07804e3f8cc7cf9638ecc9c2097d80a9ef50.patch"
    },
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "url": "https://github.com/GoogleCloudPlatform/google-auth-library-perl/commit/cd42bdef53afcc4531161e85e91d0d5997e01324.patch"
    },
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "url": "https://metacpan.org/release/CJCOLLIER/Google-Auth-0.09/changes"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.openwall.com/lists/oss-security/2026/08/04/34"
    }
  ],
  "sourceIdentifier": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-201"
        },
        {
          "lang": "en",
          "value": "CWE-918"
        }
      ],
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "type": "Secondary"
    }
  ]
}

GHSA-XXPM-5C34-X4C3

Vulnerability from github – Published: 2026-08-04 21:30 – Updated: 2026-08-05 21:31

Details

Google::Auth versions before 0.09 for Perl allow server side request forgery and credential exfiltration via unvalidated URLs taken from the credentials JSON.

The URLs the library requests are read from the credentials JSON, and their hosts were not checked against the universe domain before the request. For an external_account configuration, retrieve_subject_token fetched credential_source.url with headers from the same JSON, and fetch_access_token posted the subject token to token_url, then sent the STS access token it received to service_account_impersonation_url in an Authorization: Bearer header. The authorized_user, impersonated_service_account and service_account configurations posted the client secret and refresh token, the source access token, and a signed JWT assertion to their own JSON-supplied token_uri or impersonation URL.

Any caller that builds credentials from a configuration it does not fully control issues those requests from the application's network position, reaching hosts the configuration names, including internal services and link-local metadata endpoints, and hands them the credentials each request carries. The service_account assertion is bound to aud, so it is not replayable against Google.

Version 0.06 added a _validate_url host check to the external_account class, keyed on a universe_domain read from the same credentials JSON. Version 0.07 gated a JSON-supplied universe domain behind GOOGLE_EXTERNAL_ACCOUNT_ALLOW_CUSTOM_UNIVERSES=1, deriving the pin flag from arguments that an earlier BUILDARGS pass had already merged on the make_creds path. Version 0.08 passed the pin decision through as an explicit constructor argument and moved _validate_url to Google::Auth::Credentials, adding the call to UserRefreshCredentials and ImpersonatedServiceAccountCredentials, and 0.09 added it to ServiceAccountCredentials.

Severity

7.5 (High)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-66901"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-201"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-04T21:16:37Z",
    "severity": "HIGH"
  },
  "details": "Google::Auth versions before 0.09 for Perl allow server side request forgery and credential exfiltration via unvalidated URLs taken from the credentials JSON.\n\nThe URLs the library requests are read from the credentials JSON, and their hosts were not checked against the universe domain before the request. For an external_account configuration, retrieve_subject_token fetched credential_source.url with headers from the same JSON, and fetch_access_token posted the subject token to token_url, then sent the STS access token it received to service_account_impersonation_url in an Authorization: Bearer header. The authorized_user, impersonated_service_account and service_account configurations posted the client secret and refresh token, the source access token, and a signed JWT assertion to their own JSON-supplied token_uri or impersonation URL.\n\nAny caller that builds credentials from a configuration it does not fully control issues those requests from the application\u0027s network position, reaching hosts the configuration names, including internal services and link-local metadata endpoints, and hands them the credentials each request carries. The service_account assertion is bound to aud, so it is not replayable against Google.\n\nVersion 0.06 added a _validate_url host check to the external_account class, keyed on a universe_domain read from the same credentials JSON. Version 0.07 gated a JSON-supplied universe domain behind GOOGLE_EXTERNAL_ACCOUNT_ALLOW_CUSTOM_UNIVERSES=1, deriving the pin flag from arguments that an earlier BUILDARGS pass had already merged on the make_creds path. Version 0.08 passed the pin decision through as an explicit constructor argument and moved _validate_url to Google::Auth::Credentials, adding the call to UserRefreshCredentials and ImpersonatedServiceAccountCredentials, and 0.09 added it to ServiceAccountCredentials.",
  "id": "GHSA-xxpm-5c34-x4c3",
  "modified": "2026-08-05T21:31:35Z",
  "published": "2026-08-04T21:30:31Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-66901"
    },
    {
      "type": "WEB",
      "url": "https://github.com/GoogleCloudPlatform/google-auth-library-perl/commit/9b5157062acc605ca9e6c507b910587f4829ce9e.patch"
    },
    {
      "type": "WEB",
      "url": "https://github.com/GoogleCloudPlatform/google-auth-library-perl/commit/c95c77e70bec94f17e239d88050f843ea1cade95.patch"
    },
    {
      "type": "WEB",
      "url": "https://github.com/GoogleCloudPlatform/google-auth-library-perl/commit/cbbb07804e3f8cc7cf9638ecc9c2097d80a9ef50.patch"
    },
    {
      "type": "WEB",
      "url": "https://github.com/GoogleCloudPlatform/google-auth-library-perl/commit/cd42bdef53afcc4531161e85e91d0d5997e01324.patch"
    },
    {
      "type": "WEB",
      "url": "https://metacpan.org/release/CJCOLLIER/Google-Auth-0.09/changes"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/08/04/34"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Publication & reservation Sightings KEV catalogs Other timestamps

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2026-66901 (GCVE-0-2026-66901)

FKIE_CVE-2026-66901

GHSA-XXPM-5C34-X4C3

Tags

Sightings

Nomenclature

Vulnerability timeline

Related by attack behaviour