Max-Severity ChromaDB Flaw Lets Attackers Hijack Servers
⚠️ A max-severity flaw (CVE-2026-45829) in the Python FastAPI server of ChromaDB allows unauthenticated attackers to load and execute remote models before authentication is enforced, enabling arbitrary code execution on exposed servers. The issue impacts PyPI-distributed releases used widely in AI retrieval stacks; a 1.5.9 release exists but it is unclear if the fix addresses this vulnerability. Mitigations include using the Rust frontend, avoiding public exposure of the Python API, and restricting network access to the ChromaDB API port.
