Nixpkgs security tracker

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Permalink CVE-2026-72914

7.5 HIGH

CVSS version (CVSS): 3.1
Attack Vector (AV): Network (N)
Attack Complexity (AC): Low (L)
Privileges Required (PR): None (N)
User Interaction (UI): None (N)
Scope (S): Unchanged (U)
Confidentiality (C): None (N)
Integrity (I): None (N)
Availability (A): High (H)
Modified Attack Vector (MAV): Network (N)
Modified Attack Complexity (MAC): Low (L)
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): None (N)
Modified Availability (MA): High (H)

updated 1 month, 1 week ago by @erictapen Activity log

Created suggestion 1 month, 1 week ago
@erictapen dismissed 1 month, 1 week ago

Mastodon: Exhausting data by an unauthenticated request to the admin retention API

Mastodon is a free, open-source social network server based on ActivityPub. Prior to 4.4.21, 4.5.14, 4.6.4, and 4.7.0-beta.1, the administrative statistics endpoints handled by Api::V1::Admin::MeasuresController and Api::V1::Admin::RetentionController checked authorization only after beginning expensive calculations. Anonymous callers could submit keys, start_at, and end_at parameters that caused long-running SQL queries in Admin::Metrics::Measure, Admin::Metrics::Retention, and Admin::Metrics::Dimension::BaseDimension, allowing repeated requests to exhaust server resources. This issue is fixed in versions 4.4.21, 4.5.14, 4.6.4, and 4.7.0-beta.1.

References

https://github.com/mastodon/mastodon/security/advisories/GHSA-7jvv-fhmg-wpfw x_refsource_CONFIRM
https://github.com/mastodon/mastodon/commit/18c61f286f1f5718a8f517940ba384866ffa3892 x_refsource_MISC
https://github.com/mastodon/mastodon/commit/467c933459c7d0e5513475b9e4888afaedfb1074 x_refsource_MISC
https://github.com/mastodon/mastodon/commit/930aa9fee26bf9eaefe27826fa1061288d83373b x_refsource_MISC
https://github.com/mastodon/mastodon/commit/da47a1bd3cd07935d7ca55a1f4f1a76f7f167e0d x_refsource_MISC
https://github.com/mastodon/mastodon/releases/tag/v4.4.21 x_refsource_MISC
https://github.com/mastodon/mastodon/releases/tag/v4.5.14 x_refsource_MISC
https://github.com/mastodon/mastodon/releases/tag/v4.6.4 x_refsource_MISC
https://github.com/mastodon/mastodon/releases/tag/v4.7.0-beta.1 x_refsource_MISC

Affected products

mastodon

==< 4.4.21
==>= 4.6.0-beta.1, < 4.6.4
==>= 4.5.0-beta.1, < 4.5.14

Matching in nixpkgs

pkgs.mastodon

Self-hosted, globally interconnected microblogging software based on ActivityPub

nixos-unstable 4.6.2
- nixpkgs-unstable 4.6.2
- nixos-unstable-small 4.6.5
nixos-26.05 4.6.2
- nixos-26.05-small 4.6.5
- nixpkgs-26.05-darwin 4.6.2

pkgs.bitlbee-mastodon

Bitlbee plugin for Mastodon

nixos-unstable 1.4.5
- nixpkgs-unstable 1.4.5
- nixos-unstable-small 1.4.5
nixos-26.05 1.4.5
- nixos-26.05-small 1.4.5
- nixpkgs-26.05-darwin 1.4.5

pkgs.mastodon-archive

Utility for backing up your Mastodon content

nixos-unstable 1.4.8
- nixpkgs-unstable 1.4.8
- nixos-unstable-small 1.4.8
nixos-26.05 1.4.8
- nixos-26.05-small 1.4.8
- nixpkgs-26.05-darwin 1.4.8

pkgs.python313Packages.mastodon-py

Python wrapper for the Mastodon API

nixos-unstable 2.2.1
- nixpkgs-unstable 2.2.1
- nixos-unstable-small 2.2.2
nixos-26.05 2.2.1
- nixos-26.05-small 2.2.1
- nixpkgs-26.05-darwin 2.2.1

pkgs.python314Packages.mastodon-py