CVE-2026-93540: Suse Rancher Fleet

Medium severity, CVSS 6.5. EPSS: 0.2% chance of exploitation in the next 30 days.

A privilege mismatch was found in Fleet. When a bundle requested namespace labels or annotations through the namespaceLabels and namespaceAnnotations options, the resulting namespace metadata update was not subject to the same authorization as the rest of the bundle's deployment. As a result, a bundle could change labels and annotations on a target namespace even when the identity it was pinned to was not authorized to modify that namespace. This affected SUSE Rancher Fleet 0.16 before 0.16.2, 0.15 before 0.15.7, 0.14 before 0.14.11, 0.13 before 0.13.16 and potentially older versions.

Affected products

• Suse Rancher Fleet: from 0.13.0, before 0.13.16 (fixed in 0.13.16); from 0.14.0, before 0.14.11 (fixed in 0.14.11); from 0.15.0, before 0.15.7 (fixed in 0.15.7); from 0.16.0, before 0.16.1 (fixed in 0.16.1)

Published 2026-09-28. Last modified 2026-10-07.