{"id":"CVE-2025-4166","aliases":["ALPINE-CVE-2025-4166","BIT-openbao-2025-4166","BIT-vault-2025-4166","EUVD-2025-13240","GHSA-gcqf-f89c-68hv","GO-2025-3663","openSUSE-SU-2025:15059-1","openSUSE-SU-2025:15186-1"],"status":"published","title":"Vault May Include Sensitive Data in Error Logs When Using the KV v2 Plugin","description":"Vault Community and Vault Enterprise Key/Value (kv) Version 2 plugin may unintentionally expose sensitive information in server and audit logs when users submit malformed payloads during secret creation or update operations via the Vault REST API. This vulnerability, identified as CVE-2025-4166, is fixed in Vault Community 1.19.3 and Vault Enterprise 1.19.3, 1.18.9, 1.17.16, 1.16.20.","severity":{"version":"3.1","score":4.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00457,"percentile":0.39901,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-209"],"published":"2025-05-02T14:57:58Z","modified":"2026-11-03T06:32:51Z","fixes":[{"ecosystem":"Go","package":"github.com/hashicorp/vault","fixed_in":["1.19.3"],"sources":["ghsa","osv"]},{"ecosystem":"Alpine:v3.22","package":"openbao","fixed_in":["2.2.2-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.23","package":"openbao","fixed_in":["2.2.2-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.24","package":"openbao","fixed_in":["2.2.2-r0"],"sources":["osv"]},{"ecosystem":"Bitnami","package":"openbao","fixed_in":["2.2.2"],"sources":["osv"]},{"ecosystem":"Bitnami","package":"vault","fixed_in":["1.19.3"],"sources":["osv"]},{"ecosystem":"openSUSE:Tumbleweed","package":"openbao","fixed_in":["2.2.2-1.1"],"sources":["osv"]}],"affected":[{"source":"ghsa","ecosystem":"Go","package":"github.com/hashicorp/vault","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0.3.0"},{"fixed":"1.19.3"}]}]},{"source":"osv","ecosystem":"Alpine:v3.22","package":"openbao","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.2.2-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.23","package":"openbao","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.2.2-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.24","package":"openbao","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.2.2-r0"}]}]},{"source":"osv","ecosystem":"Bitnami","package":"openbao","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2.2.2"}]}]},{"source":"osv","ecosystem":"Bitnami","package":"vault","ranges":[{"type":"SEMVER","events":[{"introduced":"0.3.0"},{"fixed":"1.19.3"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/hashicorp/vault","ranges":[{"type":"SEMVER","events":[{"introduced":"0.3.0"},{"fixed":"1.19.3"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/hashicorp/vault","ranges":[{"type":"SEMVER","events":[{"introduced":"0.3.0"},{"fixed":"1.19.3"}]}]},{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"govulncheck-vulndb","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.0.20250506T153719-1.1"}]}],"bundled":12},{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"openbao","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.2.2-1.1"}]}]}],"products":[{"vendor":"hashicorp","product":"vault"},{"vendor":"hashicorp","product":"vault enterprise"},{"vendor":"openbao","product":"openbao"}],"references":[{"url":"https://discuss.hashicorp.com/t/hcsec-2025-09-vault-may-expose-sensitive-information-in-error-logs-when-processing-malformed-data-with-the-kv-v2-plugin","tags":["Vendor Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-4166","tags":["web","advisory"]},{"url":"https://pkg.go.dev/vuln/GO-2025-3663","tags":["web"]},{"url":"https://github.com/advisories/GHSA-gcqf-f89c-68hv","tags":["advisory"]},{"url":"https://security.alpinelinux.org/vuln/CVE-2025-4166","tags":["advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/4xxx/CVE-2025-4166.json","tags":["advisory"]},{"url":"https://github.com/hashicorp/vault","tags":["package"]},{"url":"https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/HNV7O7SNYYY4AFS5HKAPLITKK3B57LE7/","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2019-11243","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2023-32198","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2024-22031","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-23390","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-32777","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-3879","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-4166","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-4210","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-46327","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-46342","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-46569","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-46599","tags":["web"]},{"url":"https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/2WTWIK3Y7MJO72SFX7HD2C7EXIMLTHTW/","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2025-4166","title":"Vault 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This vulnerability, identified as CVE-2025-4166, is fixed in Vault Community 1.19.3 and Vault Enterprise 1.19.3, 1.18.9, 1.17.16, 1.16.20.","status":"published","published":"2025-05-02T14:57:58.71Z","modified":"2025-05-08T13:01:48.44Z","cvss":[{"version":"3.1","score":4.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-209"],"updated_at":"2026-11-02T14:32:48.512547Z"}],"euvd":[{"id":"EUVD-2025-13240","description":"Vault Community and Vault Enterprise Key/Value (kv) Version 2 plugin may unintentionally expose sensitive information in server and audit logs when users submit malformed payloads during secret creation or update operations via the Vault REST API. This vulnerability, identified as CVE-2025-4166, is fixed in Vault Community 1.19.3 and Vault Enterprise 1.19.3, 1.18.9, 1.17.16, 1.16.20.","status":"published","published":"2025-05-02T14:57:58Z","modified":"2025-05-08T13:01:48Z","cvss":[{"version":"3.1","score":4.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T20:32:52.039629Z"}],"ghsa":[{"id":"GHSA-gcqf-f89c-68hv","title":"Hashicorp Vault Community vulnerable to Generation of Error Message Containing Sensitive Information","description":"Vault Community and Vault Enterprise Key/Value (kv) Version 2 plugin may unintentionally expose sensitive information in server and audit logs when users submit malformed payloads during secret creation or update operations via the Vault REST API. This vulnerability, identified as CVE-2025-4166, is fixed in Vault Community 1.19.3 and Vault Enterprise 1.19.3, 1.18.9, 1.17.16, 1.16.20.","status":"published","published":"2025-05-02T15:31:49Z","modified":"2025-05-06T19:11:10Z","cvss":[{"version":"3.1","score":4.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-209"],"updated_at":"2026-11-02T14:38:42.263728Z"}],"nvd":[{"id":"CVE-2025-4166","description":"Vault Community and Vault Enterprise Key/Value (kv) Version 2 plugin may unintentionally expose sensitive information in server and audit logs when users submit malformed payloads during secret creation or update operations via the Vault REST API. This vulnerability, identified as CVE-2025-4166, is fixed in Vault Community 1.19.3 and Vault Enterprise 1.19.3, 1.18.9, 1.17.16, 1.16.20.","status":"published","published":"2025-05-02T15:15:50.313Z","modified":"2026-06-17T09:32:41.227Z","cvss":[{"version":"3.1","score":4.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-209"],"updated_at":"2026-11-02T14:11:04.33372Z"}],"osv":[{"id":"ALPINE-CVE-2025-4166","description":"Vault Community and Vault Enterprise Key/Value (kv) Version 2 plugin may unintentionally expose sensitive information in server and audit logs when users submit malformed payloads during secret creation or update operations via the Vault REST API. This vulnerability, identified as CVE-2025-4166, is fixed in Vault Community 1.19.3 and Vault Enterprise 1.19.3, 1.18.9, 1.17.16, 1.16.20.","status":"published","published":"2025-05-02T15:15:50.313Z","modified":"2026-11-03T06:32:51.178151551Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-03T07:16:46.202932Z"},{"id":"CVE-2025-4166","title":"Vault May Include Sensitive Data in Error Logs When Using the KV v2 Plugin","description":"Vault Community and Vault Enterprise Key/Value (kv) Version 2 plugin may unintentionally expose sensitive information in server and audit logs when users submit malformed payloads during secret creation or update operations via the Vault REST API. This vulnerability, identified as CVE-2025-4166, is fixed in Vault Community 1.19.3 and Vault Enterprise 1.19.3, 1.18.9, 1.17.16, 1.16.20.","status":"published","published":"2025-05-02T14:57:58.71Z","modified":"2026-10-28T02:30:48.792462182Z","cvss":[{"version":"3.1","score":4.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-209"],"updated_at":"2026-11-02T15:44:49.394967Z"},{"id":"GHSA-gcqf-f89c-68hv","title":"Hashicorp Vault Community vulnerable to Generation of Error Message Containing Sensitive Information","description":"Vault Community and Vault Enterprise Key/Value (kv) Version 2 plugin may unintentionally expose sensitive information in server and audit logs when users submit malformed payloads during secret creation or update operations via the Vault REST API. This vulnerability, identified as CVE-2025-4166, is fixed in Vault Community 1.19.3 and Vault Enterprise 1.19.3, 1.18.9, 1.17.16, 1.16.20.","status":"published","published":"2025-05-02T15:31:49Z","modified":"2026-09-10T03:50:57.56202258Z","cvss":[{"version":"3.1","score":4.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-209"],"updated_at":"2026-11-02T15:46:47.822182Z"},{"id":"BIT-openbao-2025-4166","title":"Vault May Include Sensitive Data in Error Logs When Using the KV v2 Plugin","description":"Vault Community and Vault Enterprise Key/Value (kv) Version 2 plugin may unintentionally expose sensitive information in server and audit logs when users submit malformed payloads during secret creation or update operations via the Vault REST API. This vulnerability, identified as CVE-2025-4166, is fixed in Vault Community 1.19.3 and Vault Enterprise 1.19.3, 1.18.9, 1.17.16, 1.16.20.","status":"published","published":"2026-07-27T05:48:46.909Z","modified":"2026-09-08T08:48:16.66059651Z","updated_at":"2026-11-02T15:28:34.343258Z"},{"id":"BIT-vault-2025-4166","title":"Vault May Include Sensitive Data in Error Logs When Using the KV v2 Plugin","description":"Vault Community and Vault Enterprise Key/Value (kv) Version 2 plugin may unintentionally expose sensitive information in server and audit logs when users submit malformed payloads during secret creation or update operations via the Vault REST API. This vulnerability, identified as CVE-2025-4166, is fixed in Vault Community 1.19.3 and Vault Enterprise 1.19.3, 1.18.9, 1.17.16, 1.16.20.","status":"published","published":"2025-05-07T05:56:55.608Z","modified":"2026-09-08T08:48:21.308004315Z","updated_at":"2026-11-02T15:28:36.104787Z"},{"id":"GO-2025-3663","title":"Hashicorp Vault Community vulnerable to Generation of Error Message Containing Sensitive Information in github.com/hashicorp/vault","description":"Hashicorp Vault Community vulnerable to Generation of Error Message Containing Sensitive Information in github.com/hashicorp/vault","status":"published","published":"2025-05-06T15:37:19Z","modified":"2026-07-27T09:11:29.300565599Z","updated_at":"2026-11-02T15:47:01.728182Z"},{"id":"openSUSE-SU-2025:15059-1","title":"govulncheck-vulndb-0.0.20250506T153719-1.1 on GA media","description":"These are all security issues fixed in the govulncheck-vulndb-0.0.20250506T153719-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2025-05-07T00:00:00Z","modified":"2026-03-23T04:53:21.981835Z","updated_at":"2026-11-02T16:58:37.399567Z"},{"id":"openSUSE-SU-2025:15186-1","title":"openbao-2.2.2-1.1 on GA media","description":"These are all security issues fixed in the openbao-2.2.2-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2025-05-31T00:00:00Z","modified":"2026-03-23T04:53:27.618279Z","updated_at":"2026-11-02T16:58:37.399567Z"}]}}