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

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-93540
StatePUBLISHED
Assignersuse
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-28 15:17:25 UTC
Updated2026-09-29 21:32:59 UTC
DescriptionA 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.

Risk And Classification

Primary CVSS: v3.1 6.5 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

EPSS: 0.001740000 probability, percentile 0.061740000 (date 2026-09-29)

Problem Types: CWE-266 | CWE-266 CWE-266 Incorrect privilege assignment

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
3.1CNACVSS6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA SUSE Rancher affected 0.16.0 0.16.1 semver Not specified
CNA SUSE Rancher affected 0.15.0 0.15.7 semver Not specified
CNA SUSE Rancher affected 0.14.0 0.14.11 semver Not specified
CNA SUSE Rancher affected 0.13.0 0.13.16 semver Not specified

References

ReferenceSourceLinkTags
github.com/rancher/fleet/security/advisories/GHSA-m93g-8438-2cgg [email protected] github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: [email protected] (en)

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