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CVE-2026-45830

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-06-12 · updated 2026-10-26
• Weakness: CWE-639

Description

A lack of authorization validation in version 0.4.17 or later of the ChromaDB Python 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.

Affected products

• ChromaDB: from 0.4.17 through 1.5.9

References

• https://www.hiddenlayer.com/sai-security-advisory/2026-06-chromadb
• https://access.redhat.com/security/cve/CVE-2026-45830
• https://bugzilla.redhat.com/show_bug.cgi?id=2488408
• https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-45830.json

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