EUVD-2026-88316Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Bundle authoring requires low privileges (PR:L) over the network with no interaction; impact is integrity-only (unauthorized namespace metadata writes), with no confidentiality or availability loss.
Primary rating from Vendor (suse).
CVSS VectorVendor: suse
Lifecycle Timeline
5DescriptionCVE.org
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.
AnalysisAI
SUSE Rancher Fleet versions 0.16 before 0.16.2, 0.15 before 0.15.7, 0.14 before 0.14.11, and 0.13 before 0.13.16 allow an attacker with low-privilege bundle deployment rights to modify labels and annotations on Kubernetes namespaces that the bundle's pinned identity is not authorized to change. The flaw arises from inconsistent authorization checks when a bundle requests namespace metadata updates via the namespaceLabels and namespaceAnnotations options. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Requires that the attacker already have low-privilege ability to author or deploy a Fleet bundle, and that the bundle use the namespaceLabels and/or namespaceAnnotations options targeting a namespace the pinned identity is not authorized to modify. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | This is a genuine but moderate-severity authorization flaw, not an inflated high-CVSS finding - the vendor-assigned CVSS 3.1 6.5 (AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N) is well-calibrated: network-reachable, low-complexity, but requiring existing low privileges (the ability to define/deploy a Fleet bundle) and delivering integrity-only impact (C:N/A:N). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Vendor-released patch: upgrade to Fleet 0.16.2 (for 0.16.x), 0.15.7 (for 0.15.x), 0.14.11 (for 0.14.x), or 0.13.16 (for 0.13.x). … Detailed patch versions, workarounds, and compensating controls in full report. |
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View allVendor StatusVendor
SUSE
Severity: ModerateShare
External POC / Exploit Code
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