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CVE-2026-45830 Chroma CVE debrief

CVE-2026-45830 is a HIGH severity vulnerability in the ChromaDB Python project. The vulnerability affects versions 0.4.17 or later and allows any authenticated users to arbitrarily read, write, update, or delete data in any tenant's collection, regardless of which tenant they belong to. The vulnerability has a CVSS score of 8.8 and was published on [cvePublishedAt](https://www.cve.org/CVERecord?id=CVE-2026-45830).

Vendor
Chroma
Product
ChromaDB
CVSS
HIGH 8.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-12
Original CVE updated
2026-06-12
Advisory published
2026-06-12
Advisory updated
2026-06-12

Who should care

Users of ChromaDB Python project versions 0.4.17 or later should be aware of this vulnerability and take necessary actions to mitigate it.

Technical summary

The ChromaDB Python project did not properly validate authorization, allowing authenticated users to perform arbitrary actions on any tenant's collection.

Defensive priority

HIGH

Recommended defensive actions

  • Update to a version of ChromaDB Python project that has addressed this vulnerability.
  • Restrict access to sensitive data and collections.
  • Monitor for suspicious activity.

Evidence notes

Evidence of this vulnerability can be found in the [CVE-2026-45830 CVE record](cve-org) and [CVE-2026-45830 NVD detail](nvd).

Official resources

CVE-2026-45830 was published on 2026-06-12T16:16:28.660Z and modified on 2026-06-12T16:23:23.800Z.