---
id: CVE-2026-93540
title: A privilege mismatch was found in Fleet
summary: >-
  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
  authorizat…
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N'
cwe:
  - CWE-266
vendor: suse
product: rancher_fleet
affected:
  - 'rancher_fleet >= 0.13.0, < 0.13.16'
  - 'rancher_fleet >= 0.14.0, < 0.14.11'
  - 'rancher_fleet >= 0.15.0, < 0.15.7'
  - 'rancher_fleet >= 0.16.0, < 0.16.1'
patched:
  - rancher_fleet 0.16.1
published: '2026-09-28'
updated: '2026-10-07'
sourceUpdated: '2026-10-07T17:03:05.373'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-93540'
references:
  - url: 'https://github.com/rancher/fleet/security/advisories/GHSA-m93g-8438-2cgg'
    label: meissner@suse.de
tags:
  - nvd
  - cve.org
epss: 0.00174
epssPercentile: 0.06875
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-28T15:25:53.294940Z'
ingestedAt: '2026-09-28T15:13:31.602Z'
---

## Overview

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.

## Affected

- `rancher_fleet >= 0.13.0, < 0.13.16`
- `rancher_fleet >= 0.14.0, < 0.14.11`
- `rancher_fleet >= 0.15.0, < 0.15.7`
- `rancher_fleet >= 0.16.0, < 0.16.1`

## Remediation

Upgrade past the affected range:

- `rancher_fleet 0.16.1`