{"id":"GHSA-88v5-9hxc-f85r","summary":"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.","aliases":["BIT-vault-2026-5807","CVE-2026-5807","GO-2026-5247"],"modified":"2026-07-21T14:00:28.300652556Z","published":"2026-04-17T06:31:08Z","database_specific":{"github_reviewed_at":"2026-04-18T00:53:47Z","nvd_published_at":"2026-04-17T05:16:19Z","cwe_ids":["CWE-770"],"severity":"HIGH","github_reviewed":true},"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-5807"},{"type":"WEB","url":"https://access.redhat.com/security/cve/CVE-2026-5807"},{"type":"WEB","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2459109"},{"type":"WEB","url":"https://discuss.hashicorp.com/t/hcsec-2026-08-vault-vulnerable-to-denial-of-service-via-unauthenticated-root-token-generation-rekey-operations/77345"},{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-88v5-9hxc-f85r"},{"type":"PACKAGE","url":"https://github.com/hashicorp/vault"},{"type":"WEB","url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-5807.json"}],"affected":[{"package":{"name":"github.com/hashicorp/vault","ecosystem":"Go","purl":"pkg:golang/github.com/hashicorp/vault"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"last_affected":"1.21.4"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-88v5-9hxc-f85r/GHSA-88v5-9hxc-f85r.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}