CVE-2026-111717
Arkon through 0.9.2 Missing Authorization via Skills Versions API
- State
- Published
- Severity
- 5.3 Medium
- Published
- Oct 16, 2026
- Updated
- Oct 16, 2026
- Reserved
- Oct 16, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.3 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 4.3 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N | VulnCheck |
Weaknesses
- CWE-639 Authorization Bypass Through User-Controlled Key
Affected Products
| Product | Versions |
|---|---|
arkonnduckmink |
|
References
- https://hackmd.io/@hieuPenguinnn/arkon-wiki-graph-cross-department-idorthird-party-advisory
- https://github.com/nduckmink/arkon/blob/v0.9.2/app/routers/skills.py#L427-L434technical-description
- https://github.com/nduckmink/arkon/blob/v0.9.2/app/routers/skills.py#L408-L425technical-description
- VulnCheck Advisory: Arkon through 0.9.2 Missing Authorization via Skills Versions APIthird-party-advisory
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