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CVE-2026-45831

HIGH
8.8
CVSS Score
Published: June 12, 2026 at 03:03 PM UTC
Updated: June 17, 2026 at 10:52 AM UTC
3 products affected across 3 vendorsChromadbChromaChromaDB

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Severity
HIGH8.8
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Chromadb· Trychromapypi
95%
0.5.0 ≤ v ≤ 1.5.9
Chroma· Chroma Core
85%
All versions
ChromaDB· Chroma
60%
v ≥ 0.5.00.5.0

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

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

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGHHiddenLayer
Vector?

Quick Info

StatusANALYZED
CWE
CWE-863

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