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Signals Exploited in the wild (KEV) 0 Patch available 2 No fix listed 0 Has CVE 2

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Weakness (CWE) CWE-204 Observable Response Discrepancy 1 CWE-770 Allocation of Resources Without Limits or Throttling 1

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Release: SUSE Rancher 2.11.16, 2.12.12 and 2 more versions × Clear all filters

TI-2026-40393 CVE-2026-55998

Cluster Existence Oracle via Unauthenticated Import Endpoint

Priority LOW 30

The endpoint /v3/import/{token}_{clusterId}.yaml retrieves the cluster object before validating the token.

CVSS 3.1MEDIUM 5.3· Network · No auth · No interaction · EPSS 0.00343 · Published 2026-08-05 · Fixed in 2.14.4, 2.13.8 +2 CWE-204

TI-2026-40391 CVE-2026-55996

Unauthenticated Denial-of-Service via TLS SAN Stuffing in Rancher and cattle-cluster-agent

Priority LOW 20

A denial-of-service vulnerability was identified in multiple TLS listeners in Rancher.

CVSS 3.1MEDIUM 4.3· Network · Low privileges · No interaction · EPSS 0.00245 · Published 2026-08-05 · Fixed in 2.11.16, 2.12.12 +2 CWE-770

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