Rancher vulnerability

What happened

A path traversal vulnerability was found in Fleet's ImageScan subsystem in Rancher Fleet 0.12.0 up to 0.12.16, 0.13.0 up to 0.13.12, 0.14.0 up to 0.14.7 and 0.15.0 up to 0.15.3 could be used to traverse outside of the intended directory, causing a denial of service.

Affected versions

Rancher: 0.12.0 through before 0.12.16 (semver); 0.13.0 through before 0.13.12 (semver); 0.14.0 through before 0.14.7 (semver); 0.15.0 through before 0.15.3 (semver) Fixed: See vendor advisory.

Why it matters

Review the vendor advisory and exposure of the affected product to determine operational impact.

Detection & mitigation

• Apply vendor-provided updates or mitigations.
• Review affected product exposure and access logs.