CVE-2026-91133

Published: Sep 24, 2026Modified: Sep 24, 2026Deferred

6.5

Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Exploitability: 2.8 / Impact: 3.6

Source: security-advisories@github.com (Secondary)

Description

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.

Related CWEs

Improper Neutralization of Special Elements in Data Query Logic

The product generates a query intended to access or manipulate data in a data store such as a database, but it does not neutralize or incorrectly neutralizes special elements that can modify the intended logic of the query.

References (6)

https://github.com/discourse/discourse/commit/113c34d433d564bc69642649d501251a7e820b52

Source: security-advisories@github.com

https://github.com/discourse/discourse/commit/20c48bef712ee3edd4f7af58ca1123cb0c16ef6f

Source: security-advisories@github.com

https://github.com/discourse/discourse/commit/a04cab107a9f57939456181c4b082d0a34ec39bd

Source: security-advisories@github.com

https://github.com/discourse/discourse/commit/cb3ca8420fcc7aba334effd011cf41943a336fa6

Source: security-advisories@github.com

https://github.com/discourse/discourse/pull/42882

Source: security-advisories@github.com

https://github.com/discourse/discourse/security/advisories/GHSA-8hxh-573g-52gx

Source: security-advisories@github.com

Timeline

No history available yet.