CVE-2026-111716 Arkon through 0.9.2 Broken Access Control via Sources By-ID Routes

Medium 5.3 Published Updated

Authenticated users can bypass access controls to read and modify other departments' sources via insecure direct object references in Arkon.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-111716?

CVE-2026-111716 is a medium-severity missing authorization vulnerability in nduckmink arkon, published on 16 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

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.

Weakness: CWE-639

Which versions are affected by CVE-2026-111716?

How do I fix CVE-2026-111716?

No fix has been published for CVE-2026-111716 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-111716 being exploited?

There is no known exploitation of CVE-2026-111716 in the wild and no public exploit code.

Sources

Also known as GHSA-r63c-wh5x-45mr.

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