CVEvulnerability
CVE-2026-33355
6.5 MEDIUM
Official page ↗
- Status
- Analyzed
- Published
- 2026-03-19
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- Weaknesses
- CWE-200
Description
Discourse is an open-source discussion platform. Prior to versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2, the `/private-posts` endpoint did not apply post-type visibility filtering, allowing regular PM participants to see whisper posts in PM topics they had access to. Versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 contain a patch. No known workarounds are available.
Affected configurations
• discourse discourse (>= 2026.1.0 < 2026.1.2)
• discourse discourse (>= 2026.2.0 < 2026.2.1)
• discourse discourse 2026.3.0
Related
Weakness · CWE (1)
- CWE-200 Exposure of Sensitive Information to an Unauthorized Actor weakness
References
- https://github.com/discourse/discourse/commit/84e5865a279716c6866e8c0648d1d8b42320603c Patch
- https://github.com/discourse/discourse/commit/d25b8ee9ee182dbb34e92b34e39878ce4d59bcdc Patch
- https://github.com/discourse/discourse/commit/d2f317271ad7638f1e2791905472ebd9370946d1 Patch
- https://github.com/discourse/discourse/security/advisories/GHSA-g4v5-6gfp-3hjq Vendor Advisory