CVE-2026-5807

Published: Apr 17, 2026

Modified: Apr 17, 2026

PUBLISHED

CVSS v3.1

7.5

HIGH

Description

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.

Vendor	Product	Versions
HashiCorp	Vault	affected `0 - < 2.0.0`
HashiCorp	Vault Enterprise	affected `0 - < 2.0.0.`

Weaknesses (CWE)

CWE-770

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

References

https://discuss.hashicorp.com/t/hcsec-2026-08-vault-vulnerable-to-denial-of-service-via-unauthenticated-root-token-generation-rekey-operations/77345

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CVE-2026-5807

Description

Affected Products

Weaknesses (CWE)

CVSS v3.1 Details

References