All vulnerabilities
CVE-2026-45829GHSA-f4j7-r4q5-qw2cPYSEC-2026-311

ChromaDB Python project has a pre-authentication code injection vulnerability

Chroma chromadbpipLibraries & packages
Open in ThreatlineRecord JSON
CVSS
9.3Critical
ExploitationPublic exploit codeCISA's assessment says proof of concept code is public, assessed 19 May 2026. Not in the KEV catalogCISA via CVE List
Exploit odds (EPSS)1.41%Chance of exploitation activity in the next 30 days, higher than 72% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
Published18 May 2026Updated 5 Oct 2026CVE List

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

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.

Text from CVE List

Affected versions 47

  • chromadb, pip>= 1.0.0, <= 1.5.9GitHub
  • ChromaDBaffected: 1.0.0CVE List
  • chromadb, PyPIfrom 1.0.0, through 1.5.9OSV
  • chromadb, PyPI1.0.0OSV
  • chromadb, PyPI1.0.10OSV
  • chromadb, PyPI1.0.11OSV
  • chromadb, PyPI1.0.12OSV
  • chromadb, PyPI1.0.13OSV
  • chromadb, PyPI1.0.15OSV
  • chromadb, PyPI1.0.16OSV
  • chromadb, PyPI1.0.17OSV
  • chromadb, PyPI1.0.18OSV
  • chromadb, PyPI1.0.19OSV
  • chromadb, PyPI1.0.2OSV
  • chromadb, PyPI1.0.20OSV
  • chromadb, PyPI1.0.21OSV
  • chromadb, PyPI1.0.3OSV
  • chromadb, PyPI1.0.4OSV
  • chromadb, PyPI1.0.5OSV
  • chromadb, PyPI1.0.6OSV
  • chromadb, PyPI1.0.7OSV
  • chromadb, PyPI1.0.8OSV
  • chromadb, PyPI1.0.9OSV
  • chromadb, PyPI1.1.0OSV
  • chromadb, PyPI1.1.1OSV
  • chromadb, PyPI1.2.0OSV
  • chromadb, PyPI1.2.1OSV
  • chromadb, PyPI1.2.2OSV
  • chromadb, PyPI1.3.0OSV
  • chromadb, PyPI1.3.2OSV
  • chromadb, PyPI1.3.3OSV
  • chromadb, PyPI1.3.4OSV
  • chromadb, PyPI1.3.5OSV
  • chromadb, PyPI1.3.6OSV
  • chromadb, PyPI1.3.7OSV
  • chromadb, PyPI1.4.0OSV
  • chromadb, PyPI1.4.1OSV
  • chromadb, PyPI1.5.0OSV
  • chromadb, PyPI1.5.1OSV
  • chromadb, PyPI1.5.2OSV
  • chromadb, PyPI1.5.3OSV
  • chromadb, PyPI1.5.4OSV
  • chromadb, PyPI1.5.5OSV
  • chromadb, PyPI1.5.6OSV
  • chromadb, PyPI1.5.7OSV
  • chromadb, PyPI1.5.8OSV
  • chromadb, PyPI1.5.9OSV

References 10