CVE catalog
CVE-2026-4370
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 authen
- Severity
- Critical · CVSS 10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.38% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Cpe | juju | Not reported | 3.6.20 | fixed |
| Cpe | juju | Not reported | 4.0.5 | fixed |
| Cpe | juju | Not reported | 4.0.5 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Cpe | juju | cpe | Not reported | 3.6.20 | Not reported | Not reported | Not reported |
| Cpe | juju | cpe | Not reported | 4.0.5 | Not reported | Not reported | Not reported |
| Cpe | juju | cpe | Not reported | 4.0.5 | Not reported | NVD-CVE-2026-4370 | Not reported |
OpenFactory catalog packages
No matching packages in this catalog.
Observed: