CVE-2026-33355
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 products
- Discourse
- Discourse
- < 2026.1.2, 2026.2.1, 2026.3.0
- Fix
- Available
- CVSS 3.1
- 6.5 MEDIUM
- EPSS
- 0.4% (34th percentile)
- Weakness
- CWE-200
- NVD status
- Analyzed
- Published
- 2026-03-19
CVE-2026-33355 at NVD
No indexed exploits for CVE-2026-33355 yet
Our index is partial: it proves presence, never absence
No exploit for CVE-2026-33355 has been indexed yet. Our index is built from live traffic and upstream syncs, so this page can only say what it knows — not that no exploit exists.