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Vulnerability · Published May 18, 2026 · Assigned by HiddenLayer

CVE-2026-45829

Critical 10.0

In plain English

A critical-severity code injection in ChromaDB from Chroma. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 15.1% (higher than 97% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code.

Severity (CVSS 3.1)10.0Critical
Exploit odds (30 days)15.1%top 3.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack tooling1Public PoC

Official 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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
PyPIchromadbno fix listedGHSA-f4j7-r4q5-qw2c
PyPIchromadbno fix listedPYSEC-2026-311

Affected products (as reported)

VendorProductVersions
Chroma ChromaDB 1.0.0 – through *

Weakness: CWE-94, CWE-502 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

References