CVE-2026-5807

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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://discuss.hashicorp.com/t/hcsec-2026-08-vault-vulnerable-to-denial-of-service-via-unauthenticated-root-token-generation-rekey-operations/77345	Vendor Advisory
https://access.redhat.com/security/cve/CVE-2026-5807
https://bugzilla.redhat.com/show_bug.cgi?id=2459109
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-5807.json

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:hashicorp:vault:::::-:::*
	cpe:2.3:a:hashicorp:vault:::::enterprise:::*

History

26 Oct 2026, 22:10

Type	Values Removed	Values Added
Summary		(es) Vault es vulnerable a una condición de denegación de servicio donde un atacante no autenticado puede iniciar o cancelar repetidamente operaciones de generación de tokens raíz o de recifrado, ocupando la única ranura de operación en curso. Esto impide que los operadores legítimos completen estos flujos de trabajo. Esta vulnerabilidad, CVE-2026-5807, está corregida en Vault Community Edition 2.0.0 y Vault Enterprise 2.0.0.

Information

Published : 2026-04-17 05:16

Updated : 2026-10-26 22:10

NVD link : CVE-2026-5807

Mitre link : CVE-2026-5807

CVE.ORG link : CVE-2026-5807

JSON object : View

Products Affected

hashicorp

vault

CWE

CWE-770

Allocation of Resources Without Limits or Throttling

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