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CVE-2026-4370 Detail

Description

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.


Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://github.com/juju/juju/security/advisories/GHSA-gvrj-cjch-728p Canonical Ltd.

Weakness Enumeration

CWE-ID CWE Name Source
CWE-295 Improper Certificate Validation Canonical Ltd.  
CWE-306 Missing Authentication for Critical Function Canonical Ltd.  

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-4370
NVD Published Date:
04/01/2026
NVD Last Modified:
04/01/2026
Source:
Canonical Ltd.