Description
Arkon through 0.9.2 contains a missing authorization vulnerability in list_skill_versions that allows authenticated employees to read other departments' skill version metadata by bypassing the can_access_skill check. Attackers holding the default skill:read permission can request GET /api/skills/{slug}/versions for another department's skill to obtain version numbers, hashes, storage paths and changelogs.
Metrics
CVSS 3.1 4.3/10
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:NWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| nduckmink | arkon | <= 0.9.2 |
References
- https://github.com/nduckmink/arkon/blob/v0.9.2/app/routers/skills.py#L408-L425
- https://github.com/nduckmink/arkon/blob/v0.9.2/app/routers/skills.py#L427-L434
- https://hackmd.io/@hieuPenguinnn/arkon-wiki-graph-cross-department-idor
- https://www.vulncheck.com/advisories/arkon-through-0.9.2-missing-authorization-via-skills-versions-api
- https://hackmd.io/@hieuPenguinnn/arkon-wiki-graph-cross-department-idor
Timeline
- Published
- Oct 16, 2026
- Last modified
- Oct 16, 2026
- NVD status
- Deferred