{
    "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": "2026-09-29T02:53:23.285Z"
    },
    "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"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-09-29T02:53:11.993694Z",
                                "id": "CVE-2026-94613",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "yes"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-09-29T02:53:23.285Z"
                }
            }
        ]
    }
}