---
id: CVE-2026-94612
title: authentik is an open-source identity provider
summary: >-
  authentik is an open-source identity provider. Prior to 2026.2.7, 2026.5.7,
  and 2026.8.2, an authentik SAML Source verifies an assertion's signature and
  validity period but does not ensure that the identity provider issued the
  assertion …
severity: high
cvss: 7.4
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N'
cwe:
  - CWE-287
  - CWE-345
vendor: goauthentik
product: authentik
affected:
  - authentik < 2026.2.7
  - 'authentik >= 2026.5.0, < 2026.5.7'
  - 'authentik >= 2026.8.0, < 2026.8.2'
published: '2026-09-24'
updated: '2026-09-24'
sourceUpdated: '2026-09-24T19:39:45.600'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-94612'
references:
  - url: 'https://docs.goauthentik.io/releases/2026.2#fixed-in-202627'
    label: security-advisories@github.com
  - url: 'https://docs.goauthentik.io/releases/2026.5#fixed-in-202657'
    label: security-advisories@github.com
  - url: 'https://docs.goauthentik.io/releases/2026.8#fixed-in-202682'
    label: security-advisories@github.com
  - url: >-
      https://github.com/goauthentik/authentik/commit/287ea13cdc23c378abc20a7b71c9c7919a19a89a
    label: security-advisories@github.com
  - url: >-
      https://github.com/goauthentik/authentik/commit/355d8cc3d755fbba05fc5fa90ffbcbe6469acddd
    label: security-advisories@github.com
  - url: >-
      https://github.com/goauthentik/authentik/commit/54fac864a0b3bc00551af1908f662b3bf5cc6135
    label: security-advisories@github.com
  - url: >-
      https://github.com/goauthentik/authentik/commit/984b0162711f0d1988ed33544d0a671c93e4ec76
    label: security-advisories@github.com
  - url: 'https://github.com/goauthentik/authentik/pull/25957'
    label: security-advisories@github.com
  - url: 'https://github.com/goauthentik/authentik/pull/25962'
    label: security-advisories@github.com
  - url: 'https://github.com/goauthentik/authentik/pull/25967'
    label: security-advisories@github.com
  - url: 'https://github.com/goauthentik/authentik/pull/25972'
    label: security-advisories@github.com
  - url: 'https://github.com/goauthentik/authentik/releases/tag/version/2026.2.7'
    label: security-advisories@github.com
  - url: 'https://github.com/goauthentik/authentik/releases/tag/version/2026.5.7'
    label: security-advisories@github.com
  - url: 'https://github.com/goauthentik/authentik/releases/tag/version/2026.8.2'
    label: security-advisories@github.com
  - url: >-
      https://github.com/goauthentik/authentik/security/advisories/GHSA-cqj8-fxxf-9pg7
    label: security-advisories@github.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-24T17:15:17.274740Z'
ingestedAt: '2026-09-24T16:47:15.856Z'
epss: 0.00267
epssPercentile: 0.16818
---

## Overview

authentik is an open-source identity provider. Prior to 2026.2.7, 2026.5.7, and 2026.8.2, an authentik SAML Source verifies an assertion's signature and validity period but does not ensure that the identity provider issued the assertion for that Source or in response to a login request from that Source. The SAML Source also does not record already accepted assertions, allowing replay. An unauthenticated actor who possesses such a valid assertion can use an assertion intended for another service provider or reuse an earlier assertion to authenticate as the user named by the assertion. Only SAML Sources are affected; SAML Providers and other Source types are not affected. This issue is fixed in versions 2026.2.7, 2026.5.7, and 2026.8.2.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.