Bug 2459106 (CVE-2026-5052) - CVE-2026-5052 Vault: Vault: Information disclosure via Server-Side Request Forgery in ACME challenge validation
Summary: CVE-2026-5052 Vault: Vault: Information disclosure via Server-Side Request Fo...
Keywords:
Status: NEW
Alias: CVE-2026-5052
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-04-17 04:01 UTC by OSIDB Bzimport
Modified: 2026-04-17 22:28 UTC (History)
1 user (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-04-17 04:01:44 UTC 
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.
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