---
id: CVE-2026-111717
title: Arkon through 0.9.2 Missing Authorization via Skills Versions API
summary: >-
  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 th…
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N'
cvssSource: cna
cwe:
  - CWE-639
vendor: nduckmink
product: arkon
affected:
  - arkon <= 0.9.2
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-16T18:17:52.602648Z'
exploitAvailable: true
published: '2026-10-16'
updated: '2026-10-16'
sourceUpdated: '2026-10-16T18:18:24.044Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-111717'
references:
  - url: 'https://hackmd.io/@hieuPenguinnn/arkon-wiki-graph-cross-department-idor'
  - url: >-
      https://github.com/nduckmink/arkon/blob/v0.9.2/app/routers/skills.py#L427-L434
  - url: >-
      https://github.com/nduckmink/arkon/blob/v0.9.2/app/routers/skills.py#L408-L425
  - url: >-
      https://www.vulncheck.com/advisories/arkon-through-0.9.2-missing-authorization-via-skills-versions-api
    label: >-
      VulnCheck Advisory: Arkon through 0.9.2 Missing Authorization via Skills
      Versions API
tags:
  - cve.org
  - exploit-available
ingestedAt: '2026-10-16T18:43:08.626Z'
---

## Overview

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.

## Affected

- `arkon <= 0.9.2`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.