- Description
- authentik is an open-source identity provider. Prior to versions 2025.12.5, 2026.2.3, and 2026.5.1, authentik's SAML Source ACS endpoint is vulnerable to XML Signature Wrapping when validating upstream SAML responses. An attacker with any account at the upstream IdP can reuse a valid signed assertion to authenticate as another federated user. This issue has been patched in versions 2025.12.5, 2026.2.3, and 2026.5.1.
- Source
- security-advisories@github.com
- NVD status
- Analyzed
- Products
- authentik
CVSS 3.1
- Type
- Secondary
- Base score
- 8.5
- Impact score
- 6
- Exploitability score
- 1.8
- Vector string
- CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
- Severity
- HIGH
- Hype score
- Not currently trending
🚨 HIGH: CVE-2026-47201 (CVSS 8.5) - authentik SAML vulnerability allows attackers to bypass authentication via XML Signature Wrapping. Patch immediately to v2025.12.5, 2026.2.3, or 2026.5.1. #CVE #PatchNow https://t.co/5xy8uSCK44
@DFIR_Lab
25 Jul 2026
35 Impressions
0 Retweets
0 Likes
0 Bookmarks
0 Replies
0 Quotes
🚨*CVE* CVE-2026-47201 authentik is an open-source identity provider. Prior to versions 2025.12.5, 2026.2.3, and 2026.5.1, authentik's SAML Source ACS endpoint is vulnerable to XML Signatur… https://t.co/7q5YEilWSN ----- Traducción: CVE-2026-47201 aut… https://t.co/utmtNg
@infoflowcloud
3 Jun 2026
30 Impressions
0 Retweets
0 Likes
0 Bookmarks
0 Replies
0 Quotes
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