CVE-2026-33514

Discourse: Information Disclosure in Form Template API Due to Missing Authorization

State: Published
Severity: 6.0 Medium
Published: May 19, 2026
Updated: May 19, 2026
Reserved: Mar 20, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	6.0 Medium	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	GitHub_M

Weaknesses

CWE-862 Missing Authorization

Affected Products

Product	Versions
discoursediscourse	< 2026.1.4Affected >= 2026.3.0-latest, < 2026.3.1Affected >= 2026.4.0-latest, < 2026.4.1Affected >= 2026.5.0-latest , < 2026.5.0-latest.1Affected

References

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