CVE-2025-53513: canonical juju Path Traversal: '../filedir'

Vulnerability summary

CVE-2025-53513 is a high (CVSS 8.8) Path Traversal: '../filedir' vulnerability in canonical juju. EPSS estimates a 0.78% chance of exploitation in the next 30 days, higher than 54.9% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 08-07-2025
   PublishedVulnerability first disclosed.
2. 09-07-2025
   Last modifiedVulnerability information updated.

Description

The /charms endpoint on a Juju controller lacked sufficient authorization checks, allowing any user with an account on the controller to upload a charm. Uploading a malicious charm that exploits a Zip Slip vulnerability could allow an attacker to gain access to a machine running a unit through the affected charm.

• CWE-24Path Traversal: '../filedir'The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize "../" sequences that can resolve to a location that is outside of that directory.
• CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.