CVE-2026-25748
- Source
- https://cve.org/CVERecord?id=CVE-2026-25748
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-25748.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-25748
- Aliases
-
- GHSA-fj56-5763-j8pp
- Published
- 2026-02-12T19:36:45.631Z
- Modified
- 2026-02-21T10:05:44.010965Z
- Severity
-
- 8.6 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N CVSS Calculator
- Summary
- authentik has a forward authentication bypass with broken cookie
- Details
-
authentik is an open-source identity provider. Prior to 2025.10.4 and 2025.12.4, with a malformed cookie it was possible to bypass authentication when using forward authentication in the authentik Proxy Provider when used in conjunction with Traefik or Caddy as reverse proxy. When a malicious cookie was used, none of the authentik-specific X-Authentik-* headers were set which depending on application can grant access to an attacker. authentik 2025.10.4 and 2025.12.4 fix this issue.
- Database specific
{ "cwe_ids": [ "CWE-287" ], "cna_assigner": "GitHub_M", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/25xxx/CVE-2026-25748.json" }- References
-
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/25xxx/CVE-2026-25748.json
- https://github.com/goauthentik/authentik/releases/tag/version%2F2025.10.4
- https://github.com/goauthentik/authentik/releases/tag/version%2F2025.12.4
- https://github.com/goauthentik/authentik/security/advisories/GHSA-fj56-5763-j8pp
- https://nvd.nist.gov/vuln/detail/CVE-2026-25748