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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.

PUBLISHED Reserved 2026-05-13 | Published 2026-05-18 | Updated 2026-06-27 | Assigner HiddenLayer




CRITICAL: 10.0CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

Problem types

CWE-94: Improper Control of Generation of Code ('Code Injection')

Product status

Default status
unaffected

1.0.0 (semver)
affected

Credits

Esteban Tonglet finder

References

www.hiddenlayer.com/research/chromatoast-served-pre-auth exploit

access.redhat.com/security/cve/CVE-2026-45829 vdb-entry

bugzilla.redhat.com/show_bug.cgi?id=2479623 (RHBZ#2479623) issue-tracking

security.access.redhat.com/...2/vex/2026/cve-2026-45829.json

www.hiddenlayer.com/research/chromatoast-served-pre-auth

github.com/chroma-core/chroma/issues/6717

cve.org (CVE-2026-45829)

nvd.nist.gov (CVE-2026-45829)

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