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CVE PROGRAM SOURCE RECORD5.3 Medium

CVE-2026-5052

Vault Vulnerable to Server-Side Request Forgery in ACME Challenge Validation via Attacker-Controlled DNS

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Status
Published
Published
Updated
Assigning organization
HashiCorp

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

HashiCorp Vault

Default version status: unaffected

  • 1.15.0 to < 2.0.0affected

HashiCorp Vault Enterprise

Default version status: unaffected

  • 1.15.0 to < 2.0.0affected

References