CVE-2026-45830 PUBLISHED

Assigner: HiddenLayer
Reserved: 13.05.2026 Published: 12.06.2026 Updated: 12.06.2026

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.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N
CVSS Score: 8.8

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	High
Attack Complexity	Low	Integrity	High	Integrity	High
Attack Requirements	Present	Availability	None	Availability	None
Privileges Required	Low
User Interaction	None

CVSS 4.0

Product Status

Vendor	Chroma
Product	ChromaDB
Versions	Default: unaffected affected from 0.4.17 to * (incl.)

References

https://www.hiddenlayer.com/sai-security-advisory/2026-06-chromadb

Problem Types

CWE-639 Authorization bypass through User-Controlled key CWE

Impacts

CAPEC-1 Accessing Functionality Not Properly Constrained by ACLs