CVE-2026-5807
Vault Vulnerable to Denial-of-Service via Unauthenticated Root Token Generation/Rekey Operations
- State
- Published
- Severity
- 7.5 High
- Published
- Apr 17, 2026
- Updated
- Jul 15, 2026
- Reserved
- Apr 8, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | HashiCorp |
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | redhat-SADP |
Weaknesses
- CWE-770 Allocation of Resources Without Limits or Throttling
Affected Products
| Product | Versions |
|---|---|
VaultHashiCorp |
|
Vault EnterpriseHashiCorp |
|
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-2026-5807vdb-entry
- RHBZ#2459109issue-tracking
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-5807.json
Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.