CVE-2026-45833
HighCVSS 8.8Exploitation Probability (EPSS)
Low risk26th percentile - higher than 26% of all known CVEs
Summary
A code injection vulnerability in ChromaDB version 0.4.17 and later allows an authenticated attacker with UPDATE_COLLECTION permission to execute arbitrary code on the server by sending a malicious model repository with trust_remote_code set to true.
Risk Assessment
An attacker can take over the ChromaDB server, compromising data confidentiality, integrity, and availability, potentially spreading the attack within the infrastructure.
Recommendation
Immediately update ChromaDB to the latest patched version and restrict UPDATE_COLLECTION permissions to trusted users only.
Original NVD description (English source)
A code injection vulnerability in version 0.4.17 or later of the ChromaDB Python project allows an authenticated attacker to run arbitrary code on the server by sending a malicious model repository and trust_remote_code set to true in the /api/v2/tenants/default_tenant/databases/default_database/collections/{collection_id} if they have the UPDATE_COLLECTION permission.