cvedb.io
CVE-2026-4370
CRITICAL · CVSS 10
EPSS exploitation probability: 0%
Published 2026-04-01T09:16:17.717 · Last modified 2026-06-17T10:56:29.457

Summary

A vulnerability was identified in Juju from version 3.2.0 until 3.6.19 and from version 4.0 until 4.0.4, where the internal Dqlite database cluster fails to perform proper TLS client and server authentication. Specifically, the Juju controller's database endpoint does not validate client certificates when a new node attempts to join the cluster. An unauthenticated attacker with network reachability to the Juju controller's Dqlite port can exploit this flaw to join the database cluster. Once joined, the attacker gains full read and write access to the underlying database, allowing for total data compromise.

Affected products

canonical — juju

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.