CVE-2026-8828

HIGH

ChromaDB - Authorization Bypass Through User-Controlled Key

Title source: rule

Description

A lack of authorization validation in version 1.0.0 or later of the ChromaDB Rust project allows any authenticated users to arbitrarily read, write, update, or delete data in any tenant's collection regardless of which tenant they belong to.

References (1)

Core 1

Core References

https://www.hiddenlayer.com/sai-security-advisory/2026-06-chromadb-2

Scores

CVSS v4 8.8

EPSS 0.0028

EPSS Percentile 19.4%

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact total

Details

CWE

CWE-639

Status published

Products (1)

Chroma/ChromaDB 1.0.0

Published Jun 12, 2026

Tracked Since Jun 12, 2026