Code Injection in ChromaDB Python Library

Publication date: 2026-06-12

Last updated on: 2026-06-30

Assigner: HiddenLayer

Description

A code injection vulnerability in version 0.4.17 or later of the ChromaDB Python project allows an authenticated 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/default_tenant/databases/default_database/collections/{collection_id} if they have the UPDATE_COLLECTION permission.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-06-12

Last Modified

2026-06-30

Generated

2026-07-02

AI Q&A

2026-06-12

EPSS Evaluated

2026-07-01

NVD

CVE-2026-45833

EUVD

EUVD-2026-36484

Affected Vendors & Products

Vendor	Product	Version / Range
trychroma	chromadb	From 0.4.17 (inc) to 1.5.9 (inc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-94	The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.

Attack-Flow Graph

Executive Summary

This vulnerability is a code injection flaw in the ChromaDB Python project, specifically in versions 0.4.17 or later. It allows an authenticated attacker who has the UPDATE_COLLECTION permission to execute arbitrary code on the server. This is done by sending a malicious model repository along with the parameter trust_remote_code set to true to a specific API endpoint related to collections.

Impact Analysis

The impact of this vulnerability is severe because it allows an attacker with certain permissions to run arbitrary code on the server. This can lead to full compromise of the affected system, including unauthorized access, data theft, data manipulation, or disruption of services.

Hi! I’m here to help you understand CVE-2026-45833. Ask me anything about the vulnerability, its impact, or mitigation strategies.

0/70