CVE-2019-11254: Kubernetes API Server denial of service vulnerability from malicious YAML payloads
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.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2019-11254
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Moderate exploitation riskCVE-2019-112543.1% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 87% of all EPSS-scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2019-11254 | coverage & exploitation status | NVD · CVE.org |
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