VULNERABILITY INTELLIGENCE

CVE-2026-27481

CVSS score5.3 MEDIUM

EPSS probability0.24%

CISA KEVNot currently listed

Published2026-04-03

Last modified2026-07-24

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

Description

Discourse is an open-source discussion platform. From versions 2026.1.0-latest to before 2026.1.3, 2026.2.0-latest to before 2026.2.2, and 2026.3.0-latest to before 2026.3.0, an authorization bypass vulnerability allows unauthenticated or unauthorized users to view hidden (staff-only) tags and its associated data. All Discourse instances with tagging enabled and staff-only tag groups configured are impacted. This issue has been patched in versions 2026.1.3, 2026.2.2, and 2026.3.0.

Weakness classification

security-advisories@github.com: CWE-200
nvd@nist.gov: NVD-CWE-noinfo

Primary references

security-advisories@github.com — Third Party Advisory