CVE-2026-111716CWE-639

CVE-2026-111716

Medium · published October 16, 2026

CVSS v3.1
5.4
EPSS
0%
Percentile
6.9
In the wild
Unconfirmed
What it is

Arkon through 0.9.2 contains a broken access control vulnerability that allows authenticated employees to read and modify other departments' sources because by-id routes in app/routers/sources.py skip can_access_document. Attackers can call the plan, progress, PATCH, retry and approve-extraction routes with foreign source IDs to disclose derived wiki titles and summaries and alter ingestion state.

The record
Technical detail
CVSS v3.1
5.4 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
CVSS v4.0
5.3 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
EPSS
0.00177 · 6.9th 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/sources.py#L257-L275 · [email protected]https://github.com/nduckmink/arkon/blob/v0.9.2/app/routers/sources.py#L295-L312 · [email protected]https://github.com/nduckmink/arkon/blob/v0.9.2/app/routers/sources.py#L644-L673 · [email protected]https://hackmd.io/@hieuPenguinnn/arkon-wiki-graph-cross-department-idor · [email protected]https://www.vulncheck.com/advisories/arkon-through-0.9.2-broken-access-control-via-sources-by-id-routes · [email protected]
EPSS history
Timeline
  • 18 OCT 03:27Z
    EPSS moved — → 0%
    epss
  • 16 OCT 17:40Z
    Arkon through 0.9.2 Broken Access Control via Sources By-ID Routes
    cvelistv5
  • 16 OCT 17:40Z
    Arkon through 0.9.2 Broken Access Control via Sources By-ID Routes
    cvelistv5