{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-94613", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-09-21T21:32:23.741Z", "datePublished": "2026-09-24T16:13:17.785Z", "dateUpdated": "2026-09-24T16:13:17.785Z"}, "containers": {"cna": {"title": "authentik: Denial of Service via Document Type Declarations in SAML Messages", "problemTypes": [{"descriptions": [{"cweId": "CWE-770", "lang": "en", "description": "CWE-770: Allocation of Resources Without Limits or Throttling", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}}], "references": [{"name": "https://github.com/goauthentik/authentik/security/advisories/GHSA-cxwx-9x59-28qm", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/goauthentik/authentik/security/advisories/GHSA-cxwx-9x59-28qm"}, {"name": "https://github.com/goauthentik/authentik/pull/25959", "tags": ["x_refsource_MISC"], "url": "https://github.com/goauthentik/authentik/pull/25959"}, {"name": "https://github.com/goauthentik/authentik/pull/25964", "tags": ["x_refsource_MISC"], "url": "https://github.com/goauthentik/authentik/pull/25964"}, {"name": "https://github.com/goauthentik/authentik/pull/25969", "tags": ["x_refsource_MISC"], "url": "https://github.com/goauthentik/authentik/pull/25969"}, {"name": "https://github.com/goauthentik/authentik/pull/25974", "tags": ["x_refsource_MISC"], "url": "https://github.com/goauthentik/authentik/pull/25974"}, {"name": "https://github.com/goauthentik/authentik/commit/03d19d63b8d8dd7bc3de7cf6e57c6df341a9fc86", "tags": ["x_refsource_MISC"], "url": "https://github.com/goauthentik/authentik/commit/03d19d63b8d8dd7bc3de7cf6e57c6df341a9fc86"}, {"name": "https://github.com/goauthentik/authentik/commit/4cf2f803b1c2ef38c224eead375fd057a10ee8ac", "tags": ["x_refsource_MISC"], "url": "https://github.com/goauthentik/authentik/commit/4cf2f803b1c2ef38c224eead375fd057a10ee8ac"}, {"name": "https://github.com/goauthentik/authentik/commit/732adad26bb97361b6bf25ef138df5c16471ba1f", "tags": ["x_refsource_MISC"], "url": "https://github.com/goauthentik/authentik/commit/732adad26bb97361b6bf25ef138df5c16471ba1f"}, {"name": "https://github.com/goauthentik/authentik/commit/a029f5372295bfeb1e334855f78601681cdc9a2d", "tags": ["x_refsource_MISC"], "url": "https://github.com/goauthentik/authentik/commit/a029f5372295bfeb1e334855f78601681cdc9a2d"}, {"name": "https://docs.goauthentik.io/releases/2026.2#fixed-in-202627", "tags": ["x_refsource_MISC"], "url": "https://docs.goauthentik.io/releases/2026.2#fixed-in-202627"}, {"name": "https://docs.goauthentik.io/releases/2026.5#fixed-in-202657", "tags": ["x_refsource_MISC"], "url": "https://docs.goauthentik.io/releases/2026.5#fixed-in-202657"}, {"name": "https://docs.goauthentik.io/releases/2026.8#fixed-in-202682", "tags": ["x_refsource_MISC"], "url": "https://docs.goauthentik.io/releases/2026.8#fixed-in-202682"}, {"name": "https://github.com/goauthentik/authentik/releases/tag/version/2026.2.7", "tags": ["x_refsource_MISC"], "url": "https://github.com/goauthentik/authentik/releases/tag/version/2026.2.7"}, {"name": "https://github.com/goauthentik/authentik/releases/tag/version/2026.5.7", "tags": ["x_refsource_MISC"], "url": "https://github.com/goauthentik/authentik/releases/tag/version/2026.5.7"}, {"name": "https://github.com/goauthentik/authentik/releases/tag/version/2026.8.2", "tags": ["x_refsource_MISC"], "url": "https://github.com/goauthentik/authentik/releases/tag/version/2026.8.2"}], "affected": [{"vendor": "goauthentik", "product": "authentik", "versions": [{"version": "< 2026.2.7", "status": "affected"}, {"version": ">= 2026.5.0, < 2026.5.7", "status": "affected"}, {"version": ">= 2026.8.0, < 2026.8.2", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-09-24T16:13:17.785Z"}, "descriptions": [{"lang": "en", "value": "authentik is an open-source identity provider. Prior to 2026.2.7, 2026.5.7, and 2026.8.2, an unauthenticated attacker can submit a malformed SAML message to an authentik deployment using SAML in either the identity-provider or SAML source role. The message can stop the worker handling /application/saml/* or /source/saml/*, causing the requests assigned to that worker to fail. Worker process termination and automatic restart do not destroy database-backed sessions, but continued malicious messages can cause a sustained share of legitimate traffic to fail. Other protocol implementations are not affected. This issue is fixed in versions 2026.2.7, 2026.5.7, and 2026.8.2."}], "source": {"advisory": "GHSA-cxwx-9x59-28qm", "discovery": "UNKNOWN"}}}}

{}

{"affected": [{"affectedData": [{"product": "authentik", "vendor": "goauthentik", "versions": [{"status": "affected", "version": "< 2026.2.7"}, {"status": "affected", "version": ">= 2026.5.0, < 2026.5.7"}, {"status": "affected", "version": ">= 2026.8.0, < 2026.8.2"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "authentik is an open-source identity provider. Prior to 2026.2.7, 2026.5.7, and 2026.8.2, an unauthenticated attacker can submit a malformed SAML message to an authentik deployment using SAML in either the identity-provider or SAML source role. The message can stop the worker handling /application/saml/* or /source/saml/*, causing the requests assigned to that worker to fail. Worker process termination and automatic restart do not destroy database-backed sessions, but continued malicious messages can cause a sustained share of legitimate traffic to fail. Other protocol implementations are not affected. This issue is fixed in versions 2026.2.7, 2026.5.7, and 2026.8.2."}], "id": "CVE-2026-94613", "lastModified": "2026-09-24T17:17:17.723", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-09-24T17:17:17.723", "references": [{"source": "security-advisories@github.com", "url": "https://docs.goauthentik.io/releases/2026.2#fixed-in-202627"}, {"source": "security-advisories@github.com", "url": "https://docs.goauthentik.io/releases/2026.5#fixed-in-202657"}, {"source": "security-advisories@github.com", "url": "https://docs.goauthentik.io/releases/2026.8#fixed-in-202682"}, {"source": "security-advisories@github.com", "url": "https://github.com/goauthentik/authentik/commit/03d19d63b8d8dd7bc3de7cf6e57c6df341a9fc86"}, {"source": "security-advisories@github.com", "url": "https://github.com/goauthentik/authentik/commit/4cf2f803b1c2ef38c224eead375fd057a10ee8ac"}, {"source": "security-advisories@github.com", "url": "https://github.com/goauthentik/authentik/commit/732adad26bb97361b6bf25ef138df5c16471ba1f"}, {"source": "security-advisories@github.com", "url": "https://github.com/goauthentik/authentik/commit/a029f5372295bfeb1e334855f78601681cdc9a2d"}, {"source": "security-advisories@github.com", "url": "https://github.com/goauthentik/authentik/pull/25959"}, {"source": "security-advisories@github.com", "url": "https://github.com/goauthentik/authentik/pull/25964"}, {"source": "security-advisories@github.com", "url": "https://github.com/goauthentik/authentik/pull/25969"}, {"source": "security-advisories@github.com", "url": "https://github.com/goauthentik/authentik/pull/25974"}, {"source": "security-advisories@github.com", "url": "https://github.com/goauthentik/authentik/releases/tag/version/2026.2.7"}, {"source": "security-advisories@github.com", "url": "https://github.com/goauthentik/authentik/releases/tag/version/2026.5.7"}, {"source": "security-advisories@github.com", "url": "https://github.com/goauthentik/authentik/releases/tag/version/2026.8.2"}, {"source": "security-advisories@github.com", "url": "https://github.com/goauthentik/authentik/security/advisories/GHSA-cxwx-9x59-28qm"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-770"}], "source": "security-advisories@github.com", "type": "Primary"}]}

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