CVE-2026-27150
Low · 3.8CVSS
3.8
EPSS
0.3%
Published
Feb 26, 2026
CISA due date
—
The record
Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, missing `validate_before_create` authorization in Data Explorer's `QueryGroupBookmarkable` allows any logged-in user to create bookmarks for query groups they don't have access to, enabling metadata disclosure via bookmark reminder notifications. Versions 2025.12.2, 2026.1.1, and 2026.2.0 fix this issue and also make sure `validate_before_create` throws NotImplementedError in BaseBookmarkable if not implemented, to prevent similar issues in the future. No known workarounds are available.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|
Related vulnerabilities
- CVE-2026-96391 Missing Authorization vulnerability in Drupal Webform REST allows Forceful Browsing. CWE-862
- CVE-2026-96380 Missing Authorization vulnerability in Drupal CSS Usage Analyzer allows Forceful Browsing. CWE-862
- CVE-2026-96386 Missing Authorization vulnerability in Drupal Smart Content allows Forceful Browsing. CWE-862
- CVE-2026-87955 Missing Authorization vulnerability in Drupal Ultimate Table Field allows Forceful… CWE-862
- CVE-2026-87954 Missing Authorization vulnerability in Drupal Taxonomy Term Glossary allows Forceful… CWE-862
- CVE-2026-87943 Missing Authorization vulnerability in Drupal SAML SSO - Service Provider allows Forceful… CWE-862
- CVE-2026-84916 Missing Authorization vulnerability in Drupal Islandora allows Forceful Browsing. CWE-862
- CVE-2026-84921 Missing Authorization vulnerability in Drupal Webform Submissions Delete allows Forceful… CWE-862