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CVE-2026-27138
HashiCorp Vault vulnerability analysis and mitigation

Certificate verification can panic when a certificate in the chain has an empty DNS name and another certificate in the chain has excluded name constraints. This can crash programs that are either directly verifying X.509 certificate chains, or those that use TLS.


SourceNVD

Related HashiCorp Vault vulnerabilities:

CVE ID

Severity

Score

Technologies

Component name

CISA KEV exploit

Has fix

Published date

CVE-2026-33186CRITICAL9.1
  • cAdvisorcAdvisor
  • blob-csi-1.24
NoYesMar 20, 2026
CVE-2026-27137HIGH7.5
  • GrafanaGrafana
  • kubernetes-1.32
NoYesMar 06, 2026
CVE-2026-27142MEDIUM6.1
  • cAdvisorcAdvisor
  • eks-distro-fips-1.34
NoYesMar 06, 2026
CVE-2026-27138MEDIUM5.9
  • HashiCorp VaultHashiCorp Vault
  • weaviate-fips-1.33
NoYesMar 06, 2026
CVE-2026-27139LOW2.5
  • cAdvisorcAdvisor
  • dask-gateway
NoYesMar 06, 2026

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