HashiCorp Vault Vulnerable to Denial-of-Service via Unauthenticated Root Token Generation/Rekey Operations
GHSA-88v5-9hxc-f85r · BIT-vault-2026-5807 · CVE-2026-5807 · GO-2026-5247
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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.
References
- ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2026-5807
- WEB 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
- ADVISORY https://github.com/advisories/GHSA-88v5-9hxc-f85r
- PACKAGE https://github.com/hashicorp/vault
- WEB https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-5807.json
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