EUVD-2026-21364
GHSA-w5fq-8965-c969
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Lifecycle Timeline
4Description
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.
Analysis
Authorization bypass in Canonical Juju Controller facade allows authenticated users to extract bootstrap cloud credentials via CloudSpec API. Affects Juju 2.9.0-2.9.56 and 3.6.0-3.6.20. …
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Remediation
Within 24 hours: Inventory all Juju Controller deployments and identify instances running versions 2.9.0-2.9.56 or 3.6.0-3.6.20; audit recent API access logs for CloudSpec queries. Within 7 days: Apply vendor-released patches to all affected instances-upgrade to Juju 2.9.57 or 3.6.21 respectively; rotate all cloud provider credentials in affected environments. …
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External POC / Exploit Code
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