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CVE-2026-93540

6.5 · MEDIUM

A privilege mismatch was found in Fleet.

Published Sep 28, 2026suseCWE-266EPSS 0.17%

Overview

CVE-2026-93540 is a medium-severity vulnerability affecting suse rancher_fleet. It was published on September 28, 2026 and has a CVSS 3.1 base score of 6.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories and patches from suse. Update rancher_fleet to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
suserancher_fleet>= 0.13.0, < 0.13.16Affected

References

GitHubgithub.com/rancher/fleet/security/advisories/GHSA-m93g-8438-2cgg

How CyberStrike helps

Frequently asked questions

What is CVE-2026-93540?

CVE-2026-93540 is a medium-severity vulnerability affecting suse rancher_fleet. It was published on September 28, 2026 and has a CVSS 3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2026-93540?

This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-93540?

Check the references section for vendor advisories and patches from suse. Update rancher_fleet to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-93540?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-93540 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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