CVE-2026-45832 PUBLISHED

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

All V1 collection-level endpoints in ChromaDB's Python project pass None for the tenant and database to the authorization layer, allowing attackers to bypass authorization controls by using the V1 endpoints.

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 0.5.0 to * (incl.)

References

https://www.hiddenlayer.com/sai-security-advisory/2026-06-chromadb-4

Problem Types

CWE-639 Authorization bypass through User-Controlled key CWE

Impacts

CAPEC-180 Exploiting Incorrectly Configured Access Control Security Levels