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Details of issue NIXPKGS-2026-0434

NIXPKGS-2026-0434
published 4 months, 1 week ago
Permalink CVE-2026-27154
updated 4 months, 1 week ago by @LeSuisse Activity log
  • Created suggestion 4 months, 1 week ago
  • @LeSuisse ignored
    5 packages
    • discourse-mail-receiver
    • python312Packages.pydiscourse
    • python313Packages.pydiscourse
    • python314Packages.pydiscourse
    • grafanaPlugins.grafana-discourse-datasource
    4 months, 1 week ago
  • @LeSuisse accepted 4 months, 1 week ago
  • @LeSuisse published on GitHub 4 months, 1 week ago
Discourse has XSS when editing a malicious post

Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, a user full name can be evaluated as raw HTML when the following settings are set: `display_name_on_posts` => true; and `prioritize_username_in_ux` => false. Editing a post of a malicious user would trigger an XSS. Versions 2025.12.2, 2026.1.1, and 2026.2.0 patch the issue. No known workarounds are available.

Affected products

discourse
  • ==< 2025.12.2
  • ==>= 2026.1.0-latest, < 2026.1.1
  • ==>= 2026.2.0-latest, < 2026.2.0

Matching in nixpkgs

Ignored packages (5)

Package maintainers

Upstream advisory: https://github.com/discourse/discourse/security/advisories/GHSA-xv43-5gcp-wgw8