CVE-2026-5807 HIGH

CVE-2026-5807: Vault Vulnerable to Denial-of-Service via Unauthenticated Root Token Generation/Rekey Operations

Vendor Hashicorp
Product Vault
Weakness CWE-770 · Uncontrolled resource consumption
Published April 17, 2026
Last update June 30, 2026
View on NVD All CVEs

CVSS base score

7.5/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

April 17, 2026 CVE published
June 30, 2026 Record updated