CVE-2026-49256 (GCVE-0-2026-49256)
Vulnerability from cvelistv5
Published
2026-07-09 21:56
Modified
2026-07-10 13:39
Severity ?
6.3 (Medium) - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
CWE
  • CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Summary
Discourse is an open-source discussion platform. Prior to 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5, restricted tag and tag-group names attached to publicly readable categories as allowed_tags, allowed_tag_groups, or required tag groups could leak to anonymous and unauthorized users through category and group endpoints. This issue is fixed in versions 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5.
References
Impacted products
Vendor Product Version
discourse discourse Version: >= 2026.1.0-latest, < 2026.1.5
Version: >= 2026.4.0-latest, < 2026.4.2
Version: >= 2026.5.0-latest, < 2026.5.1
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