CVE-2026-45831

8.8HIGH

Key Information:

Vendor

Chroma

Status
Chromadb
Vendor
CVE Published:
12 June 2026

What is CVE-2026-45831?

The SimpleRBACAuthorizationProvider authorization provider in versions 0.5.0 or later of the ChromaDB Python project evaluates whether a user holds a given permission but never checks which tenant, database, or collection that permission applies to allowing users to perform cross tenant actions.

Affected Version(s)

ChromaDB 0.5.0

References

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

CVSS V4

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
Physical
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.