CVSS 3.1
6.5 mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:NCVE-2026-91133
Medium (6.5). EPSS 0.3% chance of exploitation in the next 30 days.
Discourse is an open-source discussion platform. Prior to 2026.1.8, 2026.6.3, 2026.7.2, and 2026.8.0, authenticated users could supply unescaped SQL LIKE metacharacters to upload-resolution patterns, causing wildcard input to select unrelated upload records instead of matching a literal identifier. The affected upload metadata, URL-lookup, and cooked-video-placeholder paths could resolve uploads the user was not authorized to access. This allowed disclosure of restricted metadata, including original filenames and secure-upload paths, without modifying the upload records. This issue is fixed in versions 2026.1.8, 2026.6.3, 2026.7.2, and 2026.8.0.
Severity
- EPSS
- 0.3% chance of exploitation in the next 30 days; higher than 21% of CVEs (scores of 2026-10-31)
- CWE
- CWE-943
- Published
- Modified
- Record from
- the NVD, synced
References
- https://github.com/discourse/discourse/commit/113c34d433d564bc69642649d501251a7e820b52
- https://github.com/discourse/discourse/commit/20c48bef712ee3edd4f7af58ca1123cb0c16ef6f
- https://github.com/discourse/discourse/commit/a04cab107a9f57939456181c4b082d0a34ec39bd
- https://github.com/discourse/discourse/commit/cb3ca8420fcc7aba334effd011cf41943a336fa6
- https://github.com/discourse/discourse/pull/42882