CVE-2026-32620

Discourse: Missing post-level authorization allows whisper metadata disclosure

State: Published
Severity: 5.3 Medium
Published: Mar 31, 2026
Updated: Apr 1, 2026
Reserved: Mar 12, 2026

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, non-staff users could access read receipt information for staff-only posts they weren't supposed to see. No post content was exposed, only metadata about who read the post and when. This issue has been patched in versions 2026.1.3, 2026.2.2, and 2026.3.0.

Scores

CVSS	Score	Vector	Source
4.0	5.3 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N	GitHub_M

Weaknesses

CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

Affected Products

Product	Versions
discoursediscourse	>= 2026.1.0-latest, < 2026.1.3Affected >= 2026.2.0-latest, < 2026.2.2Affected >= 2026.3.0-latest, < 2026.3.0Affected

References

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