CVE-2026-93540CWE-266

CVE-2026-93540

Medium · published September 28, 2026

CVSS v3.1
6.5
EPSS
0%
Percentile
6.6
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00174 · 6.6th percentile
Weakness
CWE-266 · Incorrect Privilege Assignment
Published
2026-09-28T19:17Z
Affected products (4)
ProductVersionsFixed in
suse/rancher_fleet≥ 0.13.0, < 0.13.160.13.16
suse/rancher_fleet≥ 0.14.0, < 0.14.110.14.11
suse/rancher_fleet≥ 0.15.0, < 0.15.70.15.7
suse/rancher_fleet≥ 0.16.0, < 0.16.10.16.1
References (1)
EPSS history
Timeline
  • 30 SEP 03:29Z
    EPSS moved — → 0%
    epss
  • 28 SEP 14:45Z
    Fleet applies namespace labels and annotations without the bundle's service account privileges
    cvelistv5