CVE-2026-5412: CWE-285: Improper Authorization in Canonical Juju
CVE-2026-5412 is a critical improper authorization vulnerability in Canonical Juju versions prior to 2. 9. 57 and 3. 6. 21. It allows an authenticated low-privileged user to call the CloudSpec API method in the Controller facade to extract cloud credentials used to bootstrap the controller. This exposure of sensitive credentials can lead to complete compromise of confidentiality, integrity, and availability of the affected system. The issue is fixed in Juju versions 2. 9. 57 and 3.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-5412) affects Canonical Juju's Controller facade, where insufficient authorization checks allow authenticated users with low privileges to invoke the CloudSpec API method and retrieve cloud bootstrap credentials. These credentials are sensitive and their disclosure can lead to a full system compromise. The vulnerability is present in Juju versions before 2.9.57 and 3.6.21 and is addressed by updating to these or later versions.
Potential Impact
An attacker with low-level authenticated access can obtain cloud credentials used for bootstrapping the Juju controller. This can lead to a complete compromise of the system's confidentiality, integrity, and availability, as indicated by the CVSS score of 9.9 (critical). No known exploits in the wild have been reported at this time.
Mitigation Recommendations
A fix is available by upgrading Juju to version 2.9.57 or 3.6.21 or later. Since no official patch links or advisories are provided here, users should verify and apply the official updates from Canonical to remediate this vulnerability. Patch status is not explicitly confirmed beyond the stated fixed versions, so checking the vendor advisory for the latest remediation guidance is recommended.
CVE-2026-5412: CWE-285: Improper Authorization in Canonical Juju
Description
CVE-2026-5412 is a critical improper authorization vulnerability in Canonical Juju versions prior to 2. 9. 57 and 3. 6. 21. It allows an authenticated low-privileged user to call the CloudSpec API method in the Controller facade to extract cloud credentials used to bootstrap the controller. This exposure of sensitive credentials can lead to complete compromise of confidentiality, integrity, and availability of the affected system. The issue is fixed in Juju versions 2. 9. 57 and 3.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-5412) affects Canonical Juju's Controller facade, where insufficient authorization checks allow authenticated users with low privileges to invoke the CloudSpec API method and retrieve cloud bootstrap credentials. These credentials are sensitive and their disclosure can lead to a full system compromise. The vulnerability is present in Juju versions before 2.9.57 and 3.6.21 and is addressed by updating to these or later versions.
Potential Impact
An attacker with low-level authenticated access can obtain cloud credentials used for bootstrapping the Juju controller. This can lead to a complete compromise of the system's confidentiality, integrity, and availability, as indicated by the CVSS score of 9.9 (critical). No known exploits in the wild have been reported at this time.
Mitigation Recommendations
A fix is available by upgrading Juju to version 2.9.57 or 3.6.21 or later. Since no official patch links or advisories are provided here, users should verify and apply the official updates from Canonical to remediate this vulnerability. Patch status is not explicitly confirmed beyond the stated fixed versions, so checking the vendor advisory for the latest remediation guidance is recommended.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- canonical
- Date Reserved
- 2026-04-02T07:07:23.750Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69d8f2321cc7ad14dab98423
Added to database: 4/10/2026, 12:50:58 PM
Last enriched: 4/17/2026, 2:39:54 PM
Last updated: 5/25/2026, 4:26:05 PM
Views: 92
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