CVE-2026-8828
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Authorization Bypass in ChromaDB Rust Project

Publication date: 2026-06-12

Last updated on: 2026-06-12

Assigner: HiddenLayer

Description
A lack of authorization validation in version 1.0.0 or later of the ChromaDB Rust 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-2026-8828
EUVD
EUVD-2026-36464
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
chroma chrodadb From 1.0.0 (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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Impact Analysis

The vulnerability can lead to unauthorized access and modification of data across different tenants.

  • Any authenticated user can arbitrarily read sensitive data belonging to other tenants.
  • Users can also write, update, or delete data in other tenants' collections, potentially causing data loss or corruption.

This can result in significant data breaches, loss of data integrity, and compromise of tenant isolation.

Executive Summary

This vulnerability exists in the ChromaDB Rust project version 1.0.0 or later and is caused by a lack of authorization validation.

It allows any authenticated user to read, write, update, or delete data in any tenant's collection, regardless of which tenant they belong to.

Compliance Impact

The vulnerability allows any authenticated user to arbitrarily read, write, update, or delete data in any tenant's collection regardless of tenant boundaries. This lack of authorization validation can lead to unauthorized access and modification of sensitive data.

Such unauthorized access and data manipulation can result in violations of data protection regulations and standards like GDPR and HIPAA, which require strict controls on data access and integrity to protect personal and sensitive information.

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