{"cve":"CVE-2026-5807","nvd":{"published":"2026-04-17T05:16:19.303","modified":"2026-10-26T22:10:00.163","status":"Modified","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-770"],"references":["https://discuss.hashicorp.com/t/hcsec-2026-08-vault-vulnerable-to-denial-of-service-via-unauthenticated-root-token-generation-rekey-operations/77345","https://access.redhat.com/security/cve/CVE-2026-5807","https://bugzilla.redhat.com/show_bug.cgi?id=2459109","https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-5807.json"],"products":["hashicorp:vault"],"source":"nvd","synced_at":"2026-10-26T22:26:44.656832877+00:00"},"epss":{"cve":"CVE-2026-5807","score":0.00718,"percentile":0.5357,"date":"2026-10-26"},"kev":null,"osv":[{"id":"GHSA-88v5-9hxc-f85r","url":"https://osv.dev/vulnerability/GHSA-88v5-9hxc-f85r","summary":"HashiCorp Vault Vulnerable to Denial-of-Service via Unauthenticated Root Token Generation/Rekey Operations","modified":"2026-09-10T03:50:43.840008232Z","packages":[{"ecosystem":"Go","name":"github.com/hashicorp/vault","purl":"pkg:golang/github.com/hashicorp/vault","ranges":["<=1.21.4"],"fixed":[]}]},{"id":"GO-2026-5247","url":"https://osv.dev/vulnerability/GO-2026-5247","summary":"HashiCorp Vault Vulnerable to Denial-of-Service via Unauthenticated Root Token Generation/Rekey Operations in github.com/hashicorp/vault","modified":"2026-07-02T16:59:29.459176805Z","packages":[{"ecosystem":"Go","name":"github.com/hashicorp/vault","purl":"pkg:golang/github.com/hashicorp/vault","ranges":["all versions"],"fixed":[]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}