{"cve":"CVE-2021-45042","nvd":{"published":"2021-12-17T14:15:07.667","modified":"2026-06-17T04:13:05.337","status":"Modified","description":"In HashiCorp Vault and Vault Enterprise before 1.7.7, 1.8.x before 1.8.6, and 1.9.x before 1.9.1, clusters using the Integrated Storage backend allowed an authenticated user (with write permissions to a kv secrets engine) to cause a panic and denial of service of the storage backend. The earliest affected version is 1.4.0.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H","score":4.9},"cwes":[],"references":["https://discuss.hashicorp.com/t/hcsec2-21-33-vault-s-kv-secrets-engine-with-integrated-storage-exposed-to-authenticated-denial-of-service/33157","https://security.gentoo.org/glsa/202207-01","https://www.hashicorp.com/blog/category/vault","https://discuss.hashicorp.com/t/hcsec2-21-33-vault-s-kv-secrets-engine-with-integrated-storage-exposed-to-authenticated-denial-of-service/33157","https://security.gentoo.org/glsa/202207-01"],"products":["hashicorp:vault"],"source":"nvd","synced_at":"2026-10-19T21:25:41.256909649+00:00"},"epss":{"cve":"CVE-2021-45042","score":0.01453,"percentile":0.73442,"date":"2026-11-01"},"kev":null,"osv":[],"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."]}