CVE-2026-111716

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.

References

• https://github.com/nduckmink/arkon/blob/v0.9.2/app/routers/sources.py#L257-L275
• https://github.com/nduckmink/arkon/blob/v0.9.2/app/routers/sources.py#L295-L312
• https://github.com/nduckmink/arkon/blob/v0.9.2/app/routers/sources.py#L644-L673
• https://hackmd.io/@hieuPenguinnn/arkon-wiki-graph-cross-department-idor
• https://www.vulncheck.com/advisories/arkon-through-0.9.2-broken-access-control-via-sources-by-id-routes