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Description

Discourse is an open-source discussion platform. Prior to versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2, a moderator could exploit insufficient authorization checks to access metadata of posts they should not have permission to view. Versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 contain a patch.

PUBLISHED Reserved 2026-03-06 | Published 2026-03-20 | Updated 2026-03-20 | Assigner GitHub_M




MEDIUM: 5.3CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Problem types

CWE-862: Missing Authorization

Product status

>= 2026.1.0-latest, < 2026.1.2
affected

>= 2026.2.0-latest, < 2026.2.1
affected

= 2026.3.0-latest.1
affected

References

github.com/...course/security/advisories/GHSA-5qm9-r98f-g4mq

cve.org (CVE-2026-30889)

nvd.nist.gov (CVE-2026-30889)

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