RCE in Chroma Chromadb

CVE-2026-45829

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.

Vulnerability class: RCE (Remote Code Execution)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.

EPSS exploit prediction

EPSS 0.151, 96.8th percentile (scored ); up from 0.010 30 days earlier. About EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-45829: rose from 0.010 to 0.151.

EPSS over last 30 days · oldest: 0.010 · newest: 0.151 · change: +0.141

Affected products

Weakness classification (CWE)

Public exploits and proof-of-concept code

4 public repositories with exploit or proof-of-concept code for this CVE:

References