CVE-2026-45830
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Authorization Bypass in ChromaDB Python Project

Publication date: 2026-06-12

Last updated on: 2026-06-12

Assigner: HiddenLayer

Description
A lack of authorization validation in version 0.4.17 or later of the ChromaDB Python project allows any authenticated users to arbitrarily read, write, update, or delete data in any tenant's collection regardless of which tenant they belong to.
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Meta Information
Published
2026-06-12
Last Modified
2026-06-12
Generated
2026-06-12
AI Q&A
2026-06-12
EPSS Evaluated
N/A
NVD
CVE-2026-45830
EUVD
EUVD-2026-36461
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
chroma chrodadb From 0.4.17 (inc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-639 The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.
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Executive Summary

This vulnerability exists in version 0.4.17 or later of the ChromaDB Python project. It is caused by a lack of authorization validation, which means that any authenticated user can access data across different tenants without proper permission checks.

Specifically, an authenticated user can arbitrarily read, write, update, or delete data in any tenant's collection, regardless of which tenant they belong to.

Impact Analysis

This vulnerability can have serious impacts because it allows unauthorized access and modification of data across tenants.

  • Confidential data from other tenants can be read without permission.
  • Data can be altered or deleted by unauthorized users, leading to data integrity issues.
  • It can result in data breaches, loss of trust, and potential operational disruptions.
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