PT-2026-33406 · Hashicorp · Vault+1

Published 2026-04-17 · Updated 2026-04-17 · CVE-2026-5807

NVD

CVSS v3.1

7.5

High

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

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.

Fix

DoS

Allocation of Resources Without Limits

Weakness Enumeration

CWE-770

Related Identifiers

CVE-2026-5807

Affected Products

Vault

Vault Enterprise

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-5807 · Security Note
• https://twitter.com/VulmonFeeds/status/2045076273718874367 · Twitter Post
• https://discuss.hashicorp.com/t/hcsec-2026-08-vault-vulnerable-to-denial-of-service-via-unauthenticated-root-token-generation-rekey-operations/77345 · Note
• https://twitter.com/CVEnew/status/2045102616770703558 · Twitter Post