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

🗓️ 17 Apr 2026 02:54:48Reported by HashiCorp Security TeamType 
hashicorp
 hashicorp
🔗 discuss.hashicorp.com👁 2 Views

Vault PKI ACME validation could target local hosts via server side forgery, risking information disclosure.

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Detection

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17 Apr 2026 02:54Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.15.3 - 8.6
EPSS0.00332
SSVC
2