CVE-2026-45832
Description
A flaw was found in ChromaDB. All V1 collection-level endpoints in the Python project pass null values for tenant and database to the authorization layer. This allows a remote attacker to bypass authorization controls by utilizing these V1 endpoints. The primary consequence is unauthorized access, potentially leading to high impact on confidentiality and integrity of data.
Statement
This flaw is a post-authentication tenant-isolation bypass on ChromaDB’s V1 API — it does not grant unauthenticated access and does not enable code execution. RH AI products bundle a vulnerable chromadb version but do not run the Chroma Python FastAPI server as the default product API (AutoRAG uses Milvus/pgvector; RHEL AI bootc uses chromadb as a library).
Mitigation
To mitigate this issue, restrict network access to the ChromaDB instance to trusted clients only. Configure firewall rules to limit inbound connections to the ports used by ChromaDB. This will reduce the attack surface by preventing unauthorized remote access to the vulnerable V1 collection-level endpoints. After applying firewall rules, ensure to reload or restart the firewall service for the changes to take effect.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
The following CVSS metrics and score provided are preliminary and subject to review.
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 8.1 | 8.8 | 8.1 |
| Attack Vector | Network | Network | Network |
| Attack Complexity | Low | Low | Low |
| Privileges Required | Low | Low | Low |
| User Interaction | None | None | None |
| Scope | Unchanged | Unchanged | Unchanged |
| Confidentiality | High | High | High |
| Integrity Impact | High | High | High |
| Availability Impact | None | High | None |
Vector
Red Hat: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
NVD: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
cve.org: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Understanding the Weakness (CWE)
Access Control
Technical Impact: Bypass Protection Mechanism
Frequently Asked Questions
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