Jan through 0.8.4, fixed in commit 3e1c1e7, contains a CORS misconfiguration vulnerability in its local API server that allows network-adjacent attackers to bypass trusted host restrictions by exploi…
Medium CVSS 6.3
Summary
Jan through 0.8.4, fixed in commit 3e1c1e7, contains a CORS misconfiguration vulnerability in its local API server that allows network-adjacent attackers to bypass trusted host restrictions by exploiting the server's replacement of user-configured trusted hosts with a wildcard that reflects arbitrary origins with credentials. Attackers on the local network or using DNS rebinding can reach the unauthenticated OpenAI-compatible API to perform inference, enumerate models, invoke MCP tools, and rea…
In-depth triage
No in-depth report has been generated yet (DR-003 v2 AI pipeline is under construction).
Sources
- NVD DATABASE
Original Links
- https://github.com/janhq/jan/commit/3e1c1e724f696620d89bb4a9cc18a380e0753757
- https://github.com/janhq/jan/issues/8453
- https://github.com/janhq/jan/pull/8506
- https://www.vulncheck.com/advisories/jan-local-api-server-cors-origin-reflection-via-binding
Timeline
- nvd_ingest NVD