CVE-2026-5412

Critical

Description

In Juju versions prior to 2.9.57 and 3.6.21, an authorization issue exists in the Controller facade. An authenticated user can call the CloudSpec API method to extract the cloud credentials used to bootstrap the controller. This allows a low-privileged user to access sensitive credentials. This issue is resolved in Juju versions 2.9.57 and 3.6.21.

SeverityCritical

CVSS9.9

Exploit probability—

ProductCanonical Juju

PublishedApr 10, 2026

First seenApr 10, 2026

Weakness typeCWE-285CWE-285

How to fix

Update

canonical juju2.9.57, 3.6.21 or later
github.com/juju/juju0.0.0-20260408003526-d395054dc2c3 or later

Patches

Vendor advisories

github.com/juju/juju/security/advisories/GHSA-w5fq-8965-c969

Affected products

Product	Affected versions	Fixed in
canonical juju	v < 2.9.57, 3.6 ≤ v < 3.6.21	2.9.57, 3.6.21
github.com/juju/jujuGo	v < 0.0.0-20260408003526-d395054dc2c3	0.0.0-20260408003526-d395054dc2c3

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