Vulnerability Report

CVE-2026-45829

RCE

Title: ChromaDB Pre-authentication Code Injection

RCE

Proof Of Concept

PoC Available for CVE-2026-45829

CWE Category CWE-94
Published Date May 18, 2026
Modified Date May 19, 2026
Exploit Status Available
Score 10.0 CVSS v4.0
Exploit Probability (EPSS)
9.66%

Vulnerability Summary

CVE-2026-45829: 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.

Impacted Vendors

Analysis in Progress...

Reference Links

https://github.com/chroma-core/chroma/issues/6717 https://www.hiddenlayer.com/research/chromatoast-served-pre-auth
CVSS v4.0
Source Entity 6f8de1f0-f67e-45a6-b68f-98777fdb759c
Severity CRITICAL
10.0
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
N/A
RAW 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/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

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2026-45829 Exploits & PoCs (Proof Of Concept)

GitHub https://github.com/fevar54/FULL-ANALYSIS---CVE-2026-45829-ChromaDB-
View Code
GitHub https://github.com/0xBlackash/CVE-2026-45829
View Code
MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String 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

Affected Stack

No specific products linked.