Nixpkgs security tracker

Try the new UI
Login with GitHub

Suggestion detail

Untriaged
Permalink CVE-2026-33869
4.8 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): Unchanged (U)
  • Confidentiality (C): None (N)
  • Integrity (I): Low (L)
  • Availability (A): Low (L)
  • 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): None (N)
  • Modified Scope (MS): Unchanged (U)
  • Modified Integrity (MI): Low (L)
  • Modified Availability (MA): Low (L)
created 5 months, 4 weeks ago Activity log
  • Created suggestion 5 months, 4 weeks ago
Mastodon has a denial of service for quote authorization

Mastodon is a free, open-source social network server based on ActivityPub. In versions on the 4.5.x branch prior to 4.5.8 and on the 4.4.x branch prior to 4.4.15, an attacker that knows of a quote before it has reached a server can prevent it from being correctly processed on that server. The vulnerability has been patched in Mastodon 4.5.8 and 4.4.15. Mastodon 4.3 and earlier are not affected because they do not support quotes.

Affected products

mastodon
  • ==>= 4.4.0, < 4.4.15
  • ==>= 4.5.0, < 4.5.8

Matching in nixpkgs

pkgs.mastodon

Self-hosted, globally interconnected microblogging software based on ActivityPub

  • nixos-unstable -
    • nixos-unstable-small 4.6.8
  • nixos-26.05 -
    • nixos-26.05-small 4.6.8

pkgs.bitlbee-mastodon

Bitlbee plugin for Mastodon

  • nixos-unstable -
    • nixos-unstable-small 1.4.5
  • nixos-26.05 -
    • nixos-26.05-small 1.4.5

pkgs.mastodon-archive

Utility for backing up your Mastodon content

  • nixos-unstable -
    • nixos-unstable-small 1.4.8
  • nixos-26.05 -
    • nixos-26.05-small 1.4.8

Package maintainers