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.
References6
- github.com/chroma-core/chroma/issues/6717
- www.hiddenlayer.com/research/chromatoast-served-pre-auth
- access.redhat.com/security/cve/CVE-2026-45829
- bugzilla.redhat.com/show_bug.cgi?id=2479623
- security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-45829…
- www.hiddenlayer.com/research/chromatoast-served-pre-auth
Metrics
- CVSS 3.1
-
10.0
CRITICAL
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H - CVSS 4.0
-
10.0
CRITICAL
Score source: CNA
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - EPSS — exploit probability
- 15% percentile: 97 · as of 14 November 2026
- CWE
- CWE-94CWE-502
Could this be exploited in your environment?
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