CVE-2026-45829

chromadb: ChromaDB Python Project: Arbitrary code execution via pre-authentication code injection

Published May 18, 2026 CVSS 4.0 · 10 Critical EPSS 15.1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-f4j7-r4q5-qw2c ChromaDB Python project has a pre-authentication code injection vulnerability
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Chroma
Chroma chromadb
Vendors & Products Chroma
Chroma chromadb
Type Values Removed Values Added
Title ChromaDB Pre‑Authentication Code Injection via model repository chromadb: ChromaDB Python Project: Arbitrary code execution via pre-authentication code injection
Weaknesses CWE-502
References
Metrics threat_severity

None

cvssV3_1

{'score': 10.0, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H'}

threat_severity

Critical

Type Values Removed Values Added
Title ChromaDB Pre‑Authentication Code Injection via model repository
Type Values Removed Values Added
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.
Weaknesses CWE-94
References
Metrics cvssV4_0

{'score': 10, 'vector': '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
HiddenLayer
Published
Updated
Jul 15, 2026, 11:47 AM
Reserved
May 13, 2026, 2:01 PM
Status
Awaiting Analysis
Published
May 18, 2026, 5:16 PM
Modified
Oct 26, 2026, 1:10 PM
Severity
Critical
Public date
May 18, 2026, 3:59 PM