- Description
- authentik is an open-source identity provider. Prior to versions 2025.12.5 and 2026.2.3, due to the implementation of stages in the SFE (Simple Flow Executor) in order to make the interface more compatible with legacy browsers, it was possible to use an XSS exploit in the AutosubmitStage. This issue has been patched in versions 2025.12.5 and 2026.2.3.
- Source
- security-advisories@github.com
- NVD status
- Analyzed
- Products
- authentik
CVSS 3.1
- Type
- Secondary
- Base score
- 9.3
- Impact score
- 5.8
- Exploitability score
- 2.8
- Vector string
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
- Severity
- CRITICAL
- security-advisories@github.com
- CWE-79
- Hype score
- Not currently trending
🚨 CRITICAL: CVE-2026-42849 (CVSS 9.3) authentik identity provider vulnerable to XSS in AutosubmitStage via SFE implementation. ✅ Patch NOW to v2025.12.5 or v2026.2.3 #CVE #Vulnerability #PatchNow #ThreatIntel https://t.co/Px5dKhU4O4
@DFIR_Lab
25 Jul 2026
37 Impressions
0 Retweets
0 Likes
0 Bookmarks
0 Replies
0 Quotes
🚨*CVE* CVE-2026-42849 authentik is an open-source identity provider. Prior to versions 2025.12.5 and 2026.2.3, due to the implementation of stages in the SFE (Simple Flow Executor) in orde… https://t.co/xsAQJfuM7q ----- Traducción: CVE-2026-42849 aut… https://t.co/utmtNg
@infoflowcloud
3 Jun 2026
33 Impressions
0 Retweets
0 Likes
0 Bookmarks
0 Replies
0 Quotes
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