---
id: CVE-2026-111715
title: Arkon through 0.9.2 Missing Authorization via Wiki Graph Neighborhood API
summary: >-
  Arkon through 0.9.2 contains a missing authorization vulnerability in GET
  /api/wiki/graph that lets authenticated employees read other departments' wiki
  metadata by supplying a foreign slug. Attackers with only wiki:read:own_dept
  permiss…
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
published: '2026-10-16'
updated: '2026-10-16'
sourceUpdated: '2026-10-16T17:40:04.155Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-111715'
references:
  - url: 'https://hackmd.io/@hieuPenguinnn/arkon-wiki-graph-cross-department-idor'
  - url: >-
      https://github.com/nduckmink/arkon/blob/v0.9.2/app/routers/wiki.py#L621-L633
  - url: >-
      https://github.com/nduckmink/arkon/blob/v0.9.2/app/services/wiki_service.py#L200-L257
  - url: >-
      https://www.vulncheck.com/advisories/arkon-through-0.9.2-missing-authorization-via-wiki-graph-neighborhood-api
    label: >-
      VulnCheck Advisory: Arkon through 0.9.2 Missing Authorization via Wiki
      Graph Neighborhood API
tags:
  - cve.org
ingestedAt: '2026-10-16T18:43:08.640Z'
---

## Overview

Arkon through 0.9.2 contains a missing authorization vulnerability in GET /api/wiki/graph that lets authenticated employees read other departments' wiki metadata by supplying a foreign slug. Attackers with only wiki:read:own_dept permission can query get_neighborhood() without scope checks to obtain page slugs, titles, types and link edges up to depth 3.

## Affected

- `arkon <= 0.9.2`

## Remediation

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