{"schema_version":"1.9.0","id":"CVE-2025-6011","published":"2025-08-01T18:00:24.528Z","modified":"2026-08-12T03:51:30.600782231Z","aliases":["BIT-vault-2025-6011","GHSA-mwgr-84fv-3jh9","GO-2025-3839"],"related":["CGA-82h4-wmg9-j326","SUSE-SU-2025:02912-1","openSUSE-SU-2025:15434-1","openSUSE-SU-2025:15460-1"],"summary":"Timing Side-Channel in Vault’s Userpass Auth Method","details":"A timing side channel in Vault and Vault Enterprise’s (“Vault”) userpass auth method allowed an attacker to distinguish between existing and non-existing users, and potentially enumerate valid usernames for Vault’s Userpass auth method. Fixed in Vault Community Edition 1.20.1 and Vault Enterprise 1.20.1, 1.19.7, 1.18.12, and 1.16.23.","affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/hashicorp/vault","events":[{"introduced":"0"},{"fixed":"b403b1a27c8db6038ffefb296d7be0962e08039d"},{"introduced":"6fdd6b59e97d97a9e19b0fb5304bf879c190295e"},{"last_affected":"6fdd6b59e97d97a9e19b0fb5304bf879c190295e"}],"database_specific":{"cpe":["cpe:2.3:a:hashicorp:vault:*:*:*:*:-:*:*:*","cpe:2.3:a:hashicorp:vault:1.20.0:*:*:*:enterprise:*:*:*"],"extracted_events":[{"introduced":"0"},{"fixed":"1.20.1"},{"introduced":"1.20.0"},{"last_affected":"1.20.0"}],"source":["CPE_RANGE","CPE_STRING"]}}],"versions":["1.20.0","v1.20.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-6011.json"}}],"references":[{"type":"WEB","url":"https://discuss.hashicorp.com/t/hcsec-2025-15-timing-side-channel-in-vault-s-userpass-auth-method/76034"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/6xxx/CVE-2025-6011.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-6011"},{"type":"PACKAGE","url":"https://github.com/hashicorp/vault"}],"database_specific":{"cna_assigner":"HashiCorp","cwe_ids":["CWE-203"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/6xxx/CVE-2025-6011.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N"}]}