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Vulnerability DatabaseCVE-2026-5052

CVE-2026-5052: 
HashiCorp Vault vulnerability analysis and mitigation

Vault’s PKI engine’s ACME validation did not reject local targets when issuing http-01 and tls-alpn-01 challenges. This may lead to these requests being sent to local network targets, potentially leading to information disclosure. Fixed in Vault Community Edition 2.0.0 and Vault Enterprise 2.0.0, 1.21.5, 1.20.10, and 1.19.16.

Source: NVD

Related HashiCorp Vault vulnerabilities:

CVE ID

Severity

Score

Technologies

Component name

CISA KEV exploit

Has fix

Published date

CVE-2026-3605HIGH8.1
  • HashiCorp VaultHashiCorp Vault
  • cpe:2.3:a:hashicorp:vault
NoYesApr 17, 2026
CVE-2026-5807HIGH7.5
  • HashiCorp VaultHashiCorp Vault
  • cpe:2.3:a:hashicorp:vault
NoYesApr 17, 2026
CVE-2026-4525HIGH7.5
  • HashiCorp VaultHashiCorp Vault
  • cpe:2.3:a:hashicorp:vault
NoYesApr 17, 2026
CVE-2026-39883HIGH7.3
  • PackerPacker
  • kubernetes-csi-external-attacher-fips
NoYesApr 08, 2026
CVE-2026-5052MEDIUM5.3
  • HashiCorp VaultHashiCorp Vault
  • cpe:2.3:a:hashicorp:vault
NoYesApr 17, 2026

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