CVE-2026-93540GHSA-m93g-8438-2cgg
Rancher: Fleet applies namespace labels and annotations without the bundle's service account privileges
SUSE RancherApplications & CMS
CVSS
6.5MediumExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.17%Chance of exploitation activity in the next 30 days, higher than 6% of CVEs. Scored 23 Oct 2026FIRST EPSS
What fixes it
A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.
Description
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.
Text from CVE List
Affected versions 4
- Rancheraffected: 0.16.0 before 0.16.1CVE List
- Rancheraffected: 0.15.0 before 0.15.7CVE List
- Rancheraffected: 0.14.0 before 0.14.11CVE List
- Rancheraffected: 0.13.0 before 0.13.16CVE List