---
id: "CVE-2026-111717"
kind: "vulnerability"
aliases: ["CVE-2026-111717"]
title: "Arkon: skill version list leaks other departments' metadata to employees"
severity: "medium"
cvss: 5.3
epss: null
exploited: false
status: "open"
category: "ai-tooling"
products: []
ecosystems: []
tags: ["ai-tooling", "arkon", "multi-tenant", "self-hosted"]
not_affected_if: ["no-skill-sharing", "single-department"]
published_at: "2026-10-16T18:17:56+00:00"
first_seen_at: "2026-10-23T21:57:14+00:00"
updated_at: "2026-10-25T04:27:01+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-111717", "first_seen_at": "2026-10-23T21:57:14+00:00"}]
---

# Arkon: skill version list leaks other departments' metadata to employees

Arkon through 0.9.2 fails to check department access in the list_skill_versions endpoint, so any authenticated employee can list version metadata for skills owned by other departments. Exposed fields include version numbers, hashes, storage paths and changelogs.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed Arkon version; `unknown` whether it is 0.9.2 or earlier from the sources alone
- Review whether the GET /api/skills/{slug}/versions route applies the can_access_skill check (`unknown` from the sources)

## Fix

- Upgrade Arkon past `0.9.2` once a fixed release is published (fixed version: unknown from the sources)
- Until then, restrict the skill:read permission to trusted roles (unknown from the sources)

## Timeline

- 2026-10-23T21:57:14+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-111717

## From the sources

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.

---

_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_