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TI-2026-63020 Aliases CVE-2026-93540

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

Priority LOW 28CWE-266Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Privilege escalation
Confidentiality · integrity · availability
None · High · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-266.

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 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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00174 6th percentileScored 2026-11-07
Fix Fixed Rancher (SUSE): 0.16.1, 0.15.7, 0.14.11 +1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
SUSERancher0.16.0 to before 0.16.1; 0.15.0 to before 0.15.7; 0.14.0 to before 0.14.11; 0.13.0 to before 0.13.160.16.1, 0.15.7, 0.14.11, 0.13.16Patch availableCNA
  • Rancher VendorSUSE Affected 0.16.0 to before 0.16.1; 0.15.0 to before 0.15.7; 0.14.0 to before 0.14.11; 0.13.0 to before 0.13.16 Fixed in 0.16.1, 0.15.7, 0.14.11, 0.13.16 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:suse:rancher_fleet:*:*:*:*:*:*:*:*0.13.0 to before 0.13.16; 0.14.0 to before 0.14.11; 0.15.0 to before 0.15.7; 0.16.0 to before 0.16.1VulnerableSUSE
  • cpe:2.3:a:suse:rancher_fleet:*:*:*:*:*:*:*:* Versions 0.13.0 to before 0.13.16; 0.14.0 to before 0.14.11; 0.15.0 to before 0.15.7; 0.16.0 to before 0.16.1 Vulnerable ·SUSE

Remediation

  • Fix · CNA Rancher (SUSE) Fixed in 0.16.1, 0.15.7, 0.14.11, 0.13.16

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-93540

References

Advisory 1

  • TI-2026-32801 Rancher Fleet vulnerable to cross namespace secret disclosure via unvalidated `valuesFrom` references in Helm Deployer CVSS 3.1CRITICAL 9.9
  • TI-2026-29689 Helm impersonation bypass of `RESTClientGetter` retains `cluster-admin` during template rendering CVSS 3.1CRITICAL 9.9
  • TI-2026-60216 Fleet agent copies downstream resources with cluster-admin privileges, allowing… CVSS 3.1HIGH 8.8
  • TI-2026-32804 Fleet has PSS Bypass through addLabelsFromOptions in Fleet Agent CVSS 3.1HIGH 8.8
  • TI-2026-32803 SUSE Rancher Fleet had an Unauthenticated Webhook: Regex Injection via Unsanitized Repository URL Components CVSS 4.0HIGH 8.3
  • TI-2026-63018 Authentication bypass by spoofing in SUSE Rancher CVSS 3.1HIGH 7.1
See all 11 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences