CVE-2026-44780 json
Discourse: Category queue reviewers can read raw incoming emails from queued posts
published 2026-06-12 4 mo ago modified 2026-09-08 2 mo ago also BIT-discourse-2026-44780 , EUVD-2026-36584 , GHSA-h2jr-whpx-6w63
- cvss
- 4.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 8%
- public exploits
- 0
- none known
Summary
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 — 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.
Patch / fix
- bitnami discourse 2026.1.4, 2026.3.1, 2026.4.1
- discourse discourse 2026.1.4, 2026.3.1, 2026.4.1
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 4 mo ago
Exploit prediction
0.19% chance of exploitation in the next 30 days, higher than 8% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
| OSV | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| bitnami | discourse | >=2026.1.0, <2026.1.4 >=2026.3.0, <2026.3.1 >=2026.4.0, <2026.4.1 |
2026.1.4 2026.3.1 2026.4.1 |
Affected products
- discourse discourse
Classification
- Weakness
-
- CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
References
-
github.com
/discourse/discourse/security/advisories/GHSA-h2jr-whpx-6w63
third-party-advisory, advisory
-
nvd.nist.gov
/vuln/detail/CVE-2026-44780
web
Sources
- CVE List CVE-2026-44780
- NVD CVE-2026-44780
- OSV BIT-discourse-2026-44780
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.