CVE-2026-5807
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.
SeverityHigh
CVSS7.5
Exploit probability—
Product
Hashicorp Vault
PublishedApr 17, 2026
First seenApr 17, 2026
Weakness typeCWE-770Allocation of resources without limits
How to fix
Update
- hashicorp vault2.0.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| hashicorp vault | v < 2.0.0 | 2.0.0 |
| github.com/hashicorp/vaultGo | v ≤ 1.21.4, No range specified | — |
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