CVE-2026-45831 — HIGH (8.8)

Q: How severe is CVE-2026-45831?

CVE-2026-45831 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-45831?

Check the references section above for vendor advisories and patch information. Affected products include: Trychroma Chromadb.

Vulnerability Description

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.

CVSS Score

8.8

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Trychroma	Chromadb	>= 0.5.0, <= 1.5.9

Related Weaknesses (CWE)

CWE-863

References

https://www.hiddenlayer.com/sai-security-advisory/2026-06-chromadb-3Third Party Advisory

FAQ

What is CVE-2026-45831?

CVE-2026-45831 is a vulnerability with a CVSS score of 8.8 (HIGH). 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, da...

How severe is CVE-2026-45831?

CVE-2026-45831 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-45831?

Check the references section above for vendor advisories and patch information. Affected products include: Trychroma Chromadb.