RCE in Chroma Chromadb

CVE-2026-45833

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.

Vulnerability class: RCE (Remote Code Execution)

Published 2026-06-12 · last modified 2026-10-26.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS 0.003, 28.0th percentile (scored 2026-11-11); unchanged over 30 days. About EPSS.

Affected products

Chroma Chromadb — versions 0.4.17
Trychroma Chromadb

Weakness classification (CWE)

CWE-94 — Code Injection

Public exploits and proof-of-concept code

1 public repository with exploit or proof-of-concept code for this CVE:

e4zyy/Project-CVE-2026-45833 (last pushed 2026-08-30): CVE-2026-45833 ChromaDB

References

This CVE has public exploit evidence. See the latest CVEs with public exploits.