HIGH7.5
GHSA-88v5-9hxc-f85r
HashiCorp Vault Vulnerable to Denial-of-Service via Unauthenticated Root Token Generation/Rekey Operations
Details
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.
Are you affected?
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Affected packages
Go/github.com/hashicorp/vault
Introduced in:
0No fixed version published yet for github.com/hashicorp/vault (go modules). Pin to a known-safe version or switch to an alternative.
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-5807[ADVISORY]
- https://access.redhat.com/security/cve/CVE-2026-5807[WEB]
- https://bugzilla.redhat.com/show_bug.cgi?id=2459109[WEB]
- https://discuss.hashicorp.com/t/hcsec-2026-08-vault-vulnerable-to-denial-of-service-via-unauthenticated-root-token-generation-rekey-operations/77345[WEB]
- https://github.com/advisories/GHSA-88v5-9hxc-f85r[ADVISORY]
- https://github.com/hashicorp/vault[PACKAGE]
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-5807.json[WEB]