VulnerabilityAnalyzed

CVE-2026-33408

Discourse is an open-source discussion platform.

LOW 2.7EPSS 0.28%

Does this matter?

Lower severity and a low EPSS score (0.28%). Track it; it rarely justifies an emergency change on its own.

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.

CVSS 3.1: 2.7 LOWCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N
EPSS: 0.28% probability · 20th percentile
CISA KEV: Not listed
Weakness: CWE-862
Affected: discourse/discourse
Source: security-advisories@github.com

References

https://github.com/discourse/discourse/commit/3bf3793a708662716c0a4eaf64ae091abe71ab4cPatch
https://github.com/discourse/discourse/commit/473288219e93cd17576cf15e4f0b9e388a31d0c1Patch
https://github.com/discourse/discourse/commit/62721429d4402505d21280bcbe5894032447d800Patch
https://github.com/discourse/discourse/security/advisories/GHSA-wf9r-386h-g29cVendor Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.