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.

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Fixes

Solution

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Workaround

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History

Tue, 19 May 2026 08:45:00 +0000

Type Values Removed Values Added
First Time appeared Chroma
Chroma chromadb
Vendors & Products Chroma
Chroma chromadb

Tue, 19 May 2026 00:15:00 +0000

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


Mon, 18 May 2026 17:30:00 +0000

Type Values Removed Values Added
Title ChromaDB Pre‑Authentication Code Injection via model repository

Mon, 18 May 2026 16:45:00 +0000

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'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: HiddenLayer

Published:

Updated: 2026-05-18T15:59:22.529Z

Reserved: 2026-05-13T14:01:39.604Z

Link: CVE-2026-45829

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-05-18T17:16:34.040

Modified: 2026-05-18T20:23:20.240

Link: CVE-2026-45829

cve-icon Redhat

Severity : Critical

Publid Date: 2026-05-18T15:59:22Z

Links: CVE-2026-45829 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-05-19T08:18:53Z

Weaknesses