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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
HashiCorp Vault
Default version status: unaffected
0 to < 2.0.0affected
HashiCorp Vault Enterprise
Default version status: unaffected
0 to < 2.0.0.affected
References
- https://discuss.hashicorp.com/t/hcsec-2026-08-vault-vulnerable-to-denial-of-service-via-unauthenticated-root-token-generation-rekey-operations/77345 ↗
- 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 ↗