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Medium severity6.5NVD Advisory· Published Mar 31, 2026· Updated Apr 9, 2026

CVE-2026-33300

CVE-2026-33300

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 in the Category Chatables Controller show action allowed moderators to get information on hidden groups names and user count. This issue has been patched in versions 2026.1.3, 2026.2.2, and 2026.3.0.

Affected products

3
  • Discourse (software)/Discourse3 versions
    cpe:2.3:a:discourse:discourse:2026.3.0:*:*:*:latest:*:*:*+ 2 more
    • cpe:2.3:a:discourse:discourse:2026.3.0:*:*:*:latest:*:*:*
    • cpe:2.3:a:discourse:discourse:2026.3.0:*:*:*:latest.1:*:*:*
    • cpe:2.3:a:discourse:discourse:*:*:*:*:latest:*:*:*range: >=2026.1.0,<2026.1.3

Patches

1
07f66658cce8
https://github.com/discourse/discoursevia nvd-ref
commit

Vulnerability mechanics

Generated by null/stub on May 9, 2026. Inputs: CWE entries + fix-commit diffs from this CVE's patches. Citations validated against bundle.

References

2

News mentions

0

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