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CVE-2026-93540

Fleet applies namespace labels and annotations without the bundle's service account privileges

CVSS 3.1 6.5 MEDIUMCheck source for fixed versionsKEV status unknown

Original advisory

Historical advisory recorded 23 Oct 2026 15:48:27 UTC. Read the latest advisory.

cve-program · CVE-2026-93540

Published

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.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-93540

Published

Fleet

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "SUSE",
                    "product": "Rancher",
                    "packageName": "Fleet",
                    "repo": "https://github.com/rancher/fleet/",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "0.16.0",
                            "lessThan": "0.16.1",
                            "versionType": "semver"
                        },
                        {
                            "status": "affected",
                            "version": "0.15.0",
                            "lessThan": "0.15.7",
                            "versionType": "semver"
                        },
                        {
                            "status": "affected",
                            "version": "0.14.0",
                            "lessThan": "0.14.11",
                            "versionType": "semver"
                        },
                        {
                            "status": "affected",
                            "version": "0.13.0",
                            "lessThan": "0.13.16",
                            "versionType": "semver"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }

Original source record · Cite this exact observation · Complete original publisher JSON