CVE-2019-11254

mediumCVSS 6.5covered by 1 sourcefirst seen 2026-08-06

CSIRTS triage

What: The Kubernetes API Server is vulnerable to denial of service when processing malicious YAML payloads.
Who is affected: Kubernetes clusters running affected versions with API Server exposed to untrusted YAML input.
Urgency: Medium severity (CVSS 6.5) denial of service vulnerability; patch Kubernetes components promptly.
Action: Update Kubernetes API Server to a version validating and sanitizing YAML payload processing.

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Moderate exploitation risk3.1% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 87% of all EPSS-scored CVEs.

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