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Details of issue NIXPKGS-2026-1855

NIXPKGS-2026-1855
published on
Permalink CVE-2026-42849
9.3 CRITICAL
  • CVSS version (CVSS): 3.1
  • Attack Vector (AV): Network (N)
  • Attack Complexity (AC): Low (L)
  • Privileges Required (PR): None (N)
  • User Interaction (UI): Required (R)
  • Scope (S): Changed (C)
  • Confidentiality (C): High (H)
  • Integrity (I): High (H)
  • Availability (A): None (N)
  • Modified Attack Vector (MAV): Network (N)
  • Modified Attack Complexity (MAC): Low (L)
  • Modified Privileges Required (MPR): None (N)
  • Modified User Interaction (MUI): Required (R)
  • Modified Confidentiality (MC): High (H)
  • Modified Scope (MS): Changed (C)
  • Modified Integrity (MI): High (H)
  • Modified Availability (MA): None (N)
updated 8 hours ago by @LeSuisse Activity log
  • Created suggestion 12 hours ago
  • @LeSuisse ignored
    3 packages
    • authentik-outposts.ldap
    • authentik-outposts.proxy
    • authentik-outposts.radius
    8 hours ago
  • @LeSuisse accepted 8 hours ago
  • @LeSuisse published on GitHub 8 hours ago
authentik: Reflected XSS in SFE AutosubmitStage allows IDP account takeover

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.

Affected products

authentik
  • ==< 2026.2.3
  • ==< 2025.12.5

Matching in nixpkgs

Ignored packages (3)