{"id":"CVE-2025-54998","aliases":["GHSA-j3xv-7fxp-gfhx","BIT-openbao-2025-54998","GO-2025-3855"],"title":"OpenBao Userpass and LDAP User Lockout Bypass","summary":"OpenBao Userpass and LDAP User Lockout Bypass","severity":"medium","cvss":5.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","vendor":"openbao","product":"github.com/openbao/openbao","ecosystem":"go","affected":["github.com/openbao/openbao >= 0.1.0, < 2.3.2","github.com/openbao/openbao < 0.0.0-20250807212521-c52795c1ef74"],"patched":["github.com/openbao/openbao 2.3.2","github.com/openbao/openbao 0.0.0-20250807212521-c52795c1ef74"],"published":"2025-08-08","updated":"2026-07-27","source":"OSV","sourceUrl":"https://osv.dev/vulnerability/GHSA-j3xv-7fxp-gfhx","references":[{"url":"https://github.com/openbao/openbao/security/advisories/GHSA-j3xv-7fxp-gfhx"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-54998"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-6004"},{"url":"https://github.com/openbao/openbao/commit/c52795c1ef746c7f2c510f9225aa8ccbbd44f9fc"},{"url":"https://discuss.hashicorp.com/t/hcsec-2025-16-vault-userpass-and-ldap-user-lockout-bypass/76035"},{"url":"https://github.com/openbao/openbao"}],"tags":["osv","go"],"epss":0.00211,"epssPercentile":0.10105,"ingestedAt":"2026-07-27T19:08:54.868Z","slug":"CVE-2025-54998","body":"## Overview\n\n### Impact\n\nAttackers could bypass the automatic user lockout mechanisms in the OpenBao Userpass or LDAP auth systems. This was caused by different aliasing between pre-flight and full login request user entity alias attributions. \n\n### Patches\n\nOpenBao v2.3.2 will patch this issue.\n\n### Workarounds\n\nExisting users may apply rate-limiting quotas on the authentication endpoints: https://openbao.org/api-docs/system/rate-limit-quotas/\n\n### References\n\nThis issue was disclosed to HashiCorp and is the OpenBao equivalent of the following tickets:\n\n- https://discuss.hashicorp.com/t/hcsec-2025-16-vault-userpass-and-ldap-user-lockout-bypass/76035\n- https://nvd.nist.gov/vuln/detail/CVE-2025-6004\n\n## Affected packages\n\n- `github.com/openbao/openbao >= 0.1.0, < 2.3.2`\n- `github.com/openbao/openbao < 0.0.0-20250807212521-c52795c1ef74`\n\n## Remediation\n\nUpgrade to a patched release:\n\n- `github.com/openbao/openbao 2.3.2`\n- `github.com/openbao/openbao 0.0.0-20250807212521-c52795c1ef74`","depth":"sunlit","depthScore":29,"depthScoreParts":{"impact":29.2,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}