CVE-2026-33394

LOW

Discourse leaks PM post edits to moderators

Title source: cna

Description

Discourse is an open-source discussion platform. Prior to versions 2026.3.0-latest.1, 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-latest.1, 2026.2.1, and 2026.1.2 contain a patch. No known workarounds are available.

References (4)

[X_Refsource_Confirm] https://github.com/discourse/discourse/security/advisories/GHSA-wxvr-pm5c-829p

[X_Refsource_Misc] https://github.com/discourse/discourse/commit/3bf3793a708662716c0a4eaf64ae091abe71ab4c

[X_Refsource_Misc] https://github.com/discourse/discourse/commit/473288219e93cd17576cf15e4f0b9e388a31d0c1

[X_Refsource_Misc] https://github.com/discourse/discourse/commit/62721429d4402505d21280bcbe5894032447d800

View Writeup ZIP pw:eip

Scores

CVSS v3 2.7

EPSS 0.0003

EPSS Percentile 9.5%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N

Details

CWE

CWE-200

Status published

Products (5)

discourse/discourse 2026.3.0

discourse/discourse 2026.1.0 - 2026.1.2

discourse/discourse >= 2026.1.0-latest, < 2026.1.2

discourse/discourse >= 2026.2.0-latest, < 2026.2.1

discourse/discourse = 2026.3.0-latest

Published Mar 19, 2026

Tracked Since Mar 20, 2026