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Description

Discourse is an open-source discussion platform. Prior to versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2, moderators were able to see the first 40 characters of post edits in PMs and private categories. Versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 contain a patch. No known workarounds are available.

PUBLISHED Reserved 2026-03-19 | Published 2026-03-19 | Updated 2026-03-20 | Assigner GitHub_M




LOW: 2.2CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:N/A:N

Problem types

CWE-862: Missing Authorization

Product status

>= 2026.1.0-latest, < 2026.1.2
affected

>= 2026.2.0-latest, < 2026.2.1
affected

= 2026.3.0-latest
affected

References

github.com/...course/security/advisories/GHSA-wf9r-386h-g29c

github.com/...ommit/3bf3793a708662716c0a4eaf64ae091abe71ab4c

github.com/...ommit/473288219e93cd17576cf15e4f0b9e388a31d0c1

github.com/...ommit/62721429d4402505d21280bcbe5894032447d800

cve.org (CVE-2026-33408)

nvd.nist.gov (CVE-2026-33408)

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