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Details of issue NIXPKGS-2026-0718

NIXPKGS-2026-0718
published 3 months ago
Permalink CVE-2026-31805
5.3 MEDIUM
  • 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): Low (L)
  • Integrity (I): None (N)
  • 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): None (N)
  • Modified Confidentiality (MC): Low (L)
  • Modified Scope (MS): Unchanged (U)
  • Modified Integrity (MI): None (N)
  • Modified Availability (MA): None (N)
updated 3 months ago by @LeSuisse Activity log
  • Created suggestion 3 months ago
  • @LeSuisse ignored
    5 packages
    • discourse-mail-receiver
    • python312Packages.pydiscourse
    • python313Packages.pydiscourse
    • python314Packages.pydiscourse
    • grafanaPlugins.grafana-discourse-datasource
    3 months ago
  • @LeSuisse accepted 3 months ago
  • @LeSuisse published on GitHub 3 months ago
Discourse has a poll authorization bypass via post_id array parameter

Discourse is an open-source discussion platform. Prior to versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2, an authorization bypass in the poll plugin allowed authenticated users to vote on, remove votes from, or toggle the open/closed status of polls they did not have access to. By passing post_id as an array (e.g. post_id[]=&post_id[]=), the authorization check resolves to the accessible post while the poll lookup resolves to a different post's poll. This affects the vote, remove_vote, and toggle_status endpoints in DiscoursePoll::PollsController. Versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 contain a patch.

Affected products

discourse
  • === 2026.3.0-latest.1
  • ==>= 2026.1.0-latest, < 2026.1.2
  • ==>= 2026.2.0-latest, < 2026.2.1

Matching in nixpkgs

Ignored packages (5)

Package maintainers

Upstream advisory: https://github.com/discourse/discourse/security/advisories/GHSA-fgxm-prjv-g823