{"cve":"CVE-2025-54999","nvd":{"published":"2025-08-09T03:15:46.597","modified":"2026-06-17T09:41:05.410","status":"Analyzed","description":"OpenBao exists to provide a software solution to manage, store, and distribute sensitive data including secrets, certificates, and keys. In versions 0.1.0 through 2.3.1, when using OpenBao's userpass auth method, user enumeration was possible due to timing difference between non-existent users and users with stored credentials. This is independent of whether the supplied credentials were valid for the given user. This issue was fixed in version 2.3.2. To work around this issue, users may use another auth method or apply rate limiting quotas to limit the number of requests in a period of time: https://openbao.org/api-docs/system/rate-limit-quotas/.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","score":3.7},"cwes":["CWE-203"],"references":["https://discuss.hashicorp.com/t/hcsec-2025-15-timing-side-channel-in-vault-s-userpass-auth-method/76034","https://discuss.hashicorp.com/t/hcsec-2025-21-vault-user-enumeration-in-userpass-auth-method/76095","https://github.com/openbao/openbao/commit/4d9b5d3d6486ab9fbd5b644173fa0097015d6626","https://github.com/openbao/openbao/security/advisories/GHSA-hh28-h22f-8357"],"products":["openbao:openbao"],"source":"nvd","synced_at":"2026-10-19T22:06:45.861874017+00:00"},"epss":{"cve":"CVE-2025-54999","score":0.00213,"percentile":0.11573,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-hh28-h22f-8357","url":"https://osv.dev/vulnerability/GHSA-hh28-h22f-8357","summary":"OpenBao has a Timing Side-Channel in the Userpass Auth Method","modified":"2026-07-27T09:11:30.793253592Z","packages":[{"ecosystem":"Go","name":"github.com/openbao/openbao","purl":"pkg:golang/github.com/openbao/openbao","ranges":[">=0.1.0 <2.3.2"],"fixed":["2.3.2"]},{"ecosystem":"Go","name":"github.com/openbao/openbao","purl":"pkg:golang/github.com/openbao/openbao","ranges":["<0.0.0-20250806193356-4d9b5d3d6486"],"fixed":["0.0.0-20250806193356-4d9b5d3d6486"]}]},{"id":"GO-2025-3854","url":"https://osv.dev/vulnerability/GO-2025-3854","summary":"OpenBao has a Timing Side-Channel in the Userpass Auth Method in github.com/openbao/openbao","modified":"2026-07-27T09:11:30.793253592Z","packages":[{"ecosystem":"Go","name":"github.com/openbao/openbao","purl":"pkg:golang/github.com/openbao/openbao","ranges":["<0.0.0-20250806193356-4d9b5d3d6486",">=0.1.0"],"fixed":["0.0.0-20250806193356-4d9b5d3d6486"]}]}],"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."]}