CVE-2026-5052
MEDIUM
NVD
CVSS Score
5.3
Severity
MEDIUM
Published
Apr 17, 2026
Vendor
unknown
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.