CVE-2026-33355CWE-200

Discourse filters whisper posts from private-posts feed

Medium · published March 19, 2026

CVSS v3.1
6.5
EPSS
0%
Percentile
40.5
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00481 · 40.5th percentile
Weakness
CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor
Published
2026-03-19T22:01Z
EPSS history
Timeline
  • 19 MAR 22:01Z
    Discourse filters whisper posts from private-posts feed
    cvelistv5