Vulnerability · Published Oct 16, 2026 · Assigned by VulnCheck

CVE-2026-111715Arkon through 0.9.2 Missing Authorization via Wiki Graph Neighborhood API

Medium 4.3

In plain English

A medium-severity authorization bypass via user-controlled key in arkon from nduckmink. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 17% of all known vulnerabilities).

Severity (CVSS 3.1)4.3Medium

Exploit odds (30 days)0.3%top 83.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

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 products (as reported)

Vendor	Product	Versions
nduckmink	arkon	0 – through 0.9.2

Weakness: CWE-639 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

References

https://hackmd.io/@hieuPenguinnn/arkon-wiki-graph-cross-department-idor third-party-advisory
https://github.com/nduckmink/arkon/blob/v0.9.2/app/routers/wiki.py#L621-L633 technical-description
https://github.com/nduckmink/arkon/blob/v0.9.2/app/services/wiki_service.py#L200-L257 technical-description
VulnCheck Advisory: Arkon through 0.9.2 Missing Authorization via Wiki Graph Neighborhood API third-party-advisory