EUVD-2026-23362
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Lifecycle Timeline
4DescriptionNVD
Vault is vulnerable to a denial-of-service condition where an unauthenticated attacker can repeatedly initiate or cancel root token generation or rekey operations, occupying the single in-progress operation slot. This prevents legitimate operators from completing these workflows. This vulnerability, CVE-2026-5807, is fixed in Vault Community Edition 2.0.0 and Vault Enterprise 2.0.0.
AnalysisAI
Unauthenticated denial-of-service in HashiCorp Vault versions prior to 2.0.0 allows remote attackers to block legitimate root token generation and rekey operations by repeatedly initiating or canceling these workflows. Attackers exploit a single-slot operation queue (CWE-770: Allocation of Resources Without Limits), preventing administrative recovery and key rotation procedures. …
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RemediationAI
Within 24 hours: Inventory all HashiCorp Vault deployments and identify instances running versions prior to 2.0.0. Within 7 days: Test upgrade to Vault 2.0.0 or later in a non-production environment and validate root token and rekey workflow functionality. …
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External POC / Exploit Code
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