๐Ÿ” CVE Alert

CVE-2026-44780

MEDIUM 4.3

Discourse: Category queue reviewers can read raw incoming emails from queued posts

CVSS Score
4.3
EPSS Score
0.0%
EPSS Percentile
9th

Discourse is an open-source discussion platform. From versions 2026.1.0-latest to before 2026.1.4, 2026.3.0-latest to before 2026.3.1, and 2026.4.0-latest to before 2026.4.1, ReviewableQueuedPostSerializer unconditionally included payload["raw_email"] for posts that arrived via incoming email. Category moderation group members reaching the review queue could therefore read the full inbound email source (headers, sender trace, MUA, body) without being in view_raw_email_allowed_groups โ€” the trust boundary that gates the dedicated raw-email endpoint. This issue has been patched in versions 2026.1.4, 2026.3.1, 2026.4.1, and 2026.5.0-latest.1.

CWE CWE-200
Vendor discourse
Product discourse
Published Jun 12, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

Affected Versions

discourse / discourse
>= 2026.4.0-latest, < 2026.4.1 >= 2026.3.0-latest, < 2026.3.1 >= 2026.1.0-latest, < 2026.1.4

References

NVD โ†— CVE.org โ†— EPSS Data โ†—
github.com: https://github.com/discourse/discourse/security/advisories/GHSA-h2jr-whpx-6w63