CVE-2026-33423 PUBLISHED

Discourse staff can modify any user's group notification level

Assigner: GitHub_M
Reserved: 19.03.2026 Published: 20.03.2026 Updated: 20.03.2026

Discourse is an open-source discussion platform. Prior to versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2, staff can modify any user's group notification level. Versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 contain a patch. No known workarounds are available.

Metrics

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U
CVSS Score: 1.3

Product Status

Vendor discourse
Product discourse
Versions
  • Version >= 2026.1.0-latest, < 2026.1.2 is affected
  • Version >= 2026.2.0-latest, < 2026.2.1 is affected
  • Version = 2026.3.0-latest is affected

References

Problem Types

  • CWE-862: Missing Authorization CWE