CVE-2026-33394
Discourse leaks PM post edits to moderators
2.7
LOW
CVSS 3.1
EPSS 0.05%
Description
Discourse is an open-source discussion platform. Prior to versions 2026.3.0, 2026.2.1, and 2026.1.2, the Post Edits admin report (/admin/reports/post_edits) leaked the first 40 characters of raw post content from private messages and secure categories to moderators who shouldn't have access. Versions 2026.3.0, 2026.2.1, and 2026.1.2 contain a patch. No known workarounds are available.
How to fix CVE-2026-33394
To remediate CVE-2026-33394, upgrade the affected package to a fixed version below.
- —upgrade to 2026.1.2 or later
Is CVE-2026-33394 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- >= 2026.1.0, < 2026.1.2, >= 2026.2.0, < 2026.2.1, >= 2026.3.0, < 2026.3.0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | LOW2.7 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N |
References (5)
- WEBgithub.com/discourse/discourse/commit/3bf3793a708662716c0a4eaf64ae091abe71ab4c
- WEBgithub.com/discourse/discourse/commit/473288219e93cd17576cf15e4f0b9e388a31d0c1
- WEBgithub.com/discourse/discourse/commit/62721429d4402505d21280bcbe5894032447d800
- WEBgithub.com/discourse/discourse/security/advisories/GHSA-wxvr-pm5c-829p