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CVE-2026-91133 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

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.

Metrics

CVSS 3.x Severity and Vector Strings:

VolerionCVSS-B:4.3 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

CNA: [email protected]CVSS-B:6.5 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/discourse/discourse/commit/113c34d433d564bc69642649d501251a7e820b52	[email protected]	Source CodeVendor
https://github.com/discourse/discourse/commit/20c48bef712ee3edd4f7af58ca1123cb0c16ef6f	[email protected]	Source CodeVendor
https://github.com/discourse/discourse/commit/a04cab107a9f57939456181c4b082d0a34ec39bd	[email protected]	Source CodeVendor
https://github.com/discourse/discourse/commit/cb3ca8420fcc7aba334effd011cf41943a336fa6	[email protected]	Source CodeVendor
https://github.com/discourse/discourse/pull/42882	[email protected]	Issue TrackingVendor
https://github.com/discourse/discourse/security/advisories/GHSA-8hxh-573g-52gx	[email protected]	AdvisoryRemedyVendor

see all 6 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-943	Improper Neutralization of Special Elements in Data Query Logic	[email protected]

Affected Products

Product	Versions
Discourse	>= 2026.1.0-latest (semver) >= 2026.6.0-latest (semver) >= 2026.7.0-latest (semver)
CPE cpe:2.3:a:discourse:discourse:::::::: Remediation Upgrade: 2026.1.8moderate effort Upgrade: 2026.6.3moderate effort Upgrade: 2026.7.2moderate effort Upgrade: 2026.8.0moderate effort

Change History

2 change records found show changes

Date	Action	Recorded By
Sep 24, 2026	CVE Modified	CISA-ADP
Sep 24, 2026	New CVE Received	[email protected]