CVE-2025-0928: juju Access Control Flaw

Description

In Juju versions prior to 3.6.8 and 2.9.52, any authenticated controller user was allowed to upload arbitrary agent binaries to any model or to the controller itself, without verifying model membership or requiring explicit permissions. This enabled the distribution of poisoned binaries to new or upgraded machines, potentially resulting in remote code execution.

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CVSS v3.1 Score

8.8

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-285 CWE-285

CWE-434 Unrestricted Upload

Affected Products

Vendor	Product	Versions
canonical	juju	< 2.9.52
canonical	juju	3.0 — 3.6.8

References

Advisories & Patches

https://github.com/juju/juju/security/advisories/GHSA-4vc8-wvhw-m5gv

Exploits

https://github.com/juju/juju/security/advisories/GHSA-4vc8-wvhw-m5gv

Frequently Asked Questions

What is CVE-2025-0928? +

In Juju versions prior to 3.6.8 and 2.9.52, any authenticated controller user was allowed to upload arbitrary agent binaries to any model or to the controller itself, without verifying model membership or requiring explicit permissions. This enabled the distribution of poisoned binaries to new or upgraded machines, potentially resulting in remote code execution. It has a CVSS v3.1 base score of 8.8 (HIGH).

How severe is CVE-2025-0928? +

CVE-2025-0928 has a CVSS v3.1 score of 8.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2025-0928? +

CVE-2025-0928 affects products from canonical, specifically: juju. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-0928? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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