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CVE-2026-91133

Discourse: Escape LIKE metacharacters in upload paths to prevent disclosure

CVSS 3.1 6.5 MEDIUMCheck source for fixed versionsKEV status unknown
Original advisory

Historical advisory recorded 23 Oct 2026 15:48:27 UTC. Read the latest advisory.

cve-program · CVE-2026-91133

Published

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.

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Advisory history

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23 Oct 2026 15:48:27 UTC

Discourse: Escape LIKE metacharacters in upload paths to prevent disclosure

cve-program · CVE-2026-91133 · Published

This historical link shows only this version and versions saved before it. Browse all advisory history.

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Sources read 12 Nov 15:26 UTC · 274 of 275 readable · 272 fully read · documentation 468/469 current

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