CVE-2026-33514

Published: May 19, 2026Modified: Jul 24, 2026

6.0

Vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:XShow less

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

Description

Discourse is an open-source discussion platform. In versions prior to 2026.1.4, 2026.3.1, 2026.4.1 and 2026.5.0-latest.1, an authenticated user on a Discourse instance with the form templates feature enabled can read the name and structured content of form templates that are intended exclusively for categories they are not authorized to access. Impact is limited to disclosure of site configuration metadata. This issue has been fixed in versions 2026.1.4, 2026.3.1, 2026.4.1 and 2026.5.0-latest.1.

Affected (4)

Products: Discourse: Discourse

Discourse

1 product

Discourse

Configuration A

4 vulnerable

Vulnerable Software	Affected Versions
Discourse Discourse	From 2026.1.0 to 2026.1.4
Discourse Discourse	From 2026.3.0 to 2026.3.1
Discourse Discourse	From 2026.4.0 to 2026.4.1
Discourse Discourse	Version 2026.5.0

Related CWEs

CWE-862

Missing Authorization

The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

References (2)

https://github.com/discourse/discourse/commit/ae5c9570fb918442c4d96abc83c1e7e169909b02

Source: security-advisories@github.com

Patch

https://github.com/discourse/discourse/security/advisories/GHSA-w6g7-p2p9-2m5h

Source: security-advisories@github.com

Vendor Advisory

Timeline

No history available yet.