CVE-2026-111715CWE-639

CVE-2026-111715

Medium · published October 16, 2026

CVSS v3.1
4.3
EPSS
0%
Percentile
9.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
4.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CVSS v4.0
5.3 · 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
EPSS
0.00199 · 9.2th percentile
Weakness
CWE-639 · Authorization Bypass Through User-Controlled Key
Published
2026-10-16T22:17Z
References (5)
https://github.com/nduckmink/arkon/blob/v0.9.2/app/routers/wiki.py#L621-L633 · [email protected]https://github.com/nduckmink/arkon/blob/v0.9.2/app/services/wiki_service.py#L200-L257 · [email protected]https://hackmd.io/@hieuPenguinnn/arkon-wiki-graph-cross-department-idor · [email protected]https://www.vulncheck.com/advisories/arkon-through-0.9.2-missing-authorization-via-wiki-graph-neighborhood-api · [email protected]https://hackmd.io/@hieuPenguinnn/arkon-wiki-graph-cross-department-idor · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 18 OCT 03:27Z
    EPSS moved — → 0%
    epss
  • 16 OCT 17:40Z
    Arkon through 0.9.2 Missing Authorization via Wiki Graph Neighborhood API
    cvelistv5
  • 16 OCT 17:40Z
    Arkon through 0.9.2 Missing Authorization via Wiki Graph Neighborhood API
    cvelistv5