CVE-2025-58055 json
Discourse AI Suggestions Contain Insecure Direct Object Reference
published 2025-10-01 13 mo ago modified 2026-10-19 20 d ago also BIT-discourse-2025-58055 , EUVD-2025-33228 , GHSA-32v2-x274-vfhr
- cvss
- 4.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 17%
- public exploits
- 0
- none known
Summary
Discourse is an open-source community discussion platform. In versions 3.5.0 and below, the Discourse AI suggestion endpoints for topic “Title”, “Category”, and “Tags” allowed authenticated users to extract information about topics that they weren’t authorized to access. By modifying the “topic_id” value in API requests to the AI suggestion endpoints, users could target specific restricted topics. The AI model’s responses then disclosed information that the authenticated user couldn’t normally access. This issue is fixed in version 3.5.1. To workaround this issue, users can restrict group access to the AI helper feature through the "composer_ai_helper_allowed_groups" and "post_ai_helper_allowed_groups" site settings.
Patch / fix
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 13 mo ago
Exploit prediction
0.26% chance of exploitation in the next 30 days, higher than 17% 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 |
| NVD | 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 | <3.5.1 |
3.5.1 |
Affected products
- discourse discourse
Classification
References
-
github.com
/discourse/discourse/commit/28d569cae9b33cd55d647bf41806106e33d975c9
patch
-
github.com
/discourse/discourse/security/advisories/GHSA-32v2-x274-vfhr
vendor-advisory, advisory
-
vicarius.io
/vsociety/posts/cve-2025-58055-detect-discourse-vulnerability
web
-
vicarius.io
/vsociety/posts/cve-2025-58055-mitigate-discourse-vulnerability
web
-
nvd.nist.gov
/vuln/detail/CVE-2025-58055
web
Sources
- CVE List CVE-2025-58055
- NVD CVE-2025-58055
- OSV BIT-discourse-2025-58055
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.