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Details of issue NIXPKGS-2026-0880

NIXPKGS-2026-0880
published 2 months, 3 weeks ago
Permalink CVE-2026-31804
4.0 MEDIUM
  • CVSS version (CVSS): 3.1
  • Attack Vector (AV): Network (N)
  • Attack Complexity (AC): High (H)
  • Privileges Required (PR): None (N)
  • User Interaction (UI): None (N)
  • Scope (S): Changed (C)
  • Confidentiality (C): Low (L)
  • Integrity (I): None (N)
  • Availability (A): None (N)
  • Modified Attack Vector (MAV): Network (N)
  • Modified Attack Complexity (MAC): High (H)
  • Modified Privileges Required (MPR): None (N)
  • Modified User Interaction (MUI): None (N)
  • Modified Confidentiality (MC): Low (L)
  • Modified Scope (MS): Changed (C)
  • Modified Integrity (MI): None (N)
  • Modified Availability (MA): None (N)
updated 2 months, 3 weeks ago by @mweinelt Activity log
  • Created suggestion
  • @mweinelt ignored
    5 packages
    • python312Packages.pytautulli
    • python313Packages.pytautulli
    • python314Packages.pytautulli
    • home-assistant-component-tests.tautulli
    • tests.home-assistant-component-tests.tautulli
  • @mweinelt accepted
  • @mweinelt published on GitHub
Tautulli: Unauthenticated pms_image_proxy endpoint proxies arbitrary HTTP requests through the Plex Media Server

Tautulli is a Python based monitoring and tracking tool for Plex Media Server. Prior to version 2.17.0, the /pms_image_proxy endpoint accepts a user-supplied img parameter and forwards it to Plex Media Server's /photo/:/ transcode transcoder without authentication and without restricting the scheme or host. The endpoint is intentionally excluded from all authentication checks in webstart.py, any value of img beginning with http is passed directly to Plex, this causes the Plex Media Server process, which typically runs on the same host or internal network as Tautulli, with access to RFC-1918 address space, to issue an outbound HTTP request to any attacker-specified URL. This issue has been patched in version 2.17.0.

Affected products

Tautulli
  • ==< 2.17.0

Matching in nixpkgs

pkgs.tautulli

Python based monitoring and tracking tool for Plex Media Server

Ignored packages (5)

Package maintainers

https://github.com/Tautulli/Tautulli/security/advisories/GHSA-qj2f-4c4p-wv97