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.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact High

Subsequent System Integrity Impact High

Subsequent System Availability Impact High

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Chroma ChromaDB unaffected
Version Status Constraints
1.0.0 affected ≤ *

No data.

No data.

OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.

No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/chroma-core/chroma/issues/6717 cve-icon cve-icon
https://www.hiddenlayer.com/research/chromatoast-served-pre-auth cve-icon cve-icon
History

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

Sign in to view the affected projects.

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 : Received

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

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

Link: CVE-2026-45829

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-18T17:30:05Z

Weaknesses