{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-5807","assignerOrgId":"67fedba0-ff2e-4543-ba5b-aa93e87718cc","state":"PUBLISHED","assignerShortName":"HashiCorp","dateReserved":"2026-04-08T14:43:57.845Z","datePublished":"2026-04-17T03:22:13.816Z","dateUpdated":"2026-04-17T17:57:55.504Z"},"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","platforms":["64 bit","32 bit","x86","ARM","MacOS","Windows","Linux"],"product":"Vault","repo":"https://github.com/hashicorp/vault","vendor":"HashiCorp","versions":[{"lessThan":"2.0.0","status":"affected","version":"0","versionType":"semver"}]},{"defaultStatus":"unaffected","platforms":["64 bit","32 bit","x86","ARM","MacOS","Windows","Linux"],"product":"Vault Enterprise","repo":"https://github.com/hashicorp/vault","vendor":"HashiCorp","versions":[{"lessThan":"2.0.0.","status":"affected","version":"0","versionType":"semver"}]}],"credits":[{"lang":"en","value":"This issue was identified by XlabAI Team of Tencent Xuanwu Lab and the Atuin Automated Vulnerability Discovery Engine who reported it to HashiCorp."}],"descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<p>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.</p><br/>"}],"value":"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."}],"impacts":[{"capecId":"CAPEC-125","descriptions":[{"lang":"en","value":"CAPEC-125: Flooding"}]}],"metrics":[{"cvssV3_1":{"baseScore":7.5,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-770","description":"CWE-770: Allocation of Resources Without Limits or Throttling","lang":"en","type":"CWE"}]}],"providerMetadata":{"orgId":"67fedba0-ff2e-4543-ba5b-aa93e87718cc","shortName":"HashiCorp","dateUpdated":"2026-04-17T17:57:55.504Z"},"references":[{"url":"https://discuss.hashicorp.com/t/hcsec-2026-08-vault-vulnerable-to-denial-of-service-via-unauthenticated-root-token-generation-rekey-operations/77345"}],"source":{"advisory":"HCSEC-2026-08","discovery":"EXTERNAL"},"title":"Vault Vulnerable to Denial-of-Service via Unauthenticated Root Token Generation/Rekey Operations"},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-04-17T13:18:46.561122Z","id":"CVE-2026-5807","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-04-17T13:19:07.594Z"}}]}}