CVE-2026-45829
ChromaDB Python project has a pre-authentication code injection vulnerability
EPSS 0.17%
Description
A pre-authentication, code injection vulnerability in version 1.0.0 or later of the ChromaDB Python project allows an unauthenticated 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/{tenant}/databases/{db}/collections endpoint.
How to fix CVE-2026-45829
No fixed version has been published yet. Mitigate by removing the affected package or applying upstream guidance from the references below.
- PyPI/chromadb—no fix listed
Is CVE-2026-45829 being exploited?
Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- >= 1.0.0, <= 1.5.9
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P |