{"id":"CVE-2020-26542","aliases":["EUVD-2020-19087","GHSA-q88m-4hg8-4h3h"],"status":"published","title":"An issue was discovered in the MongoDB Simple LDAP plugin through 2020-10-02 for Percona Server...","description":"An issue was discovered in the MongoDB Simple LDAP plugin through 2020-10-02 for Percona Server when using the SimpleLDAP authentication in conjunction with Microsoft’s Active Directory, Percona has discovered a flaw that would allow authentication to complete when passing a blank value for the account password, leading to access against the service integrated with which Active Directory is deployed at the level granted to the authenticating account.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.01538,"percentile":0.75095,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-287"],"published":"2020-11-09T19:07:19Z","modified":"2026-06-17T03:08:10Z","products":[{"vendor":"percona","product":"percona_server"}],"references":[{"url":"https://www.percona.com/blog/2020/10/13/percona-distribution-for-mysql-pxc-variant-8-0-20-fixes-for-security-vulnerability-release-roundup-october-13-2020/","tags":["x_refsource_CONFIRM","x_transferred","Release Notes","Vendor Advisory"]},{"url":"https://jira.percona.com/browse/PS-7358","tags":["x_refsource_MISC","x_transferred","Issue Tracking","Permissions Required","Vendor Advisory"]},{"url":"https://jira.percona.com/browse/PSMDB-726","tags":["x_refsource_MISC","x_transferred","Issue Tracking","Permissions Required","Vendor Advisory"]},{"url":"https://www.percona.com/doc/percona-distribution-mysql/8.0/release-notes-pxc-v8.0.20.upd2.html","tags":["x_refsource_CONFIRM","x_transferred","Release Notes","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-26542"},{"url":"https://github.com/advisories/GHSA-q88m-4hg8-4h3h"}],"sources":{"cve":[{"id":"CVE-2020-26542","description":"An issue was discovered in the MongoDB Simple LDAP plugin through 2020-10-02 for Percona Server when using the SimpleLDAP authentication in conjunction with Microsoft’s Active Directory, Percona has discovered a flaw that would allow authentication to complete when passing a blank value for the account password, leading to access against the service integrated with which Active Directory is deployed at the level granted to the authenticating account.","status":"published","published":"2020-11-09T19:07:19Z","modified":"2024-08-04T15:56:04.799Z","updated_at":"2026-11-02T14:35:46.129376Z"}],"euvd":[{"id":"EUVD-2020-19087","description":"An issue was discovered in the MongoDB Simple LDAP plugin through 2020-10-02 for Percona Server when using the SimpleLDAP authentication in conjunction with Microsoft’s Active Directory, Percona has discovered a flaw that would allow authentication to complete when passing a blank value for the account password, leading to access against the service integrated with which Active Directory is deployed at the level granted to the authenticating account.","status":"published","published":"2020-11-09T19:07:19Z","modified":"2024-08-04T15:56:04Z","updated_at":"2026-11-03T03:07:15.15938Z"}],"ghsa":[{"id":"GHSA-q88m-4hg8-4h3h","title":"An issue was discovered in the MongoDB Simple LDAP plugin through 2020-10-02 for Percona Server...","description":"An issue was discovered in the MongoDB Simple LDAP plugin through 2020-10-02 for Percona Server when using the SimpleLDAP authentication in conjunction with Microsoft’s Active Directory, Percona has discovered a flaw that would allow authentication to complete when passing a blank value for the account password, leading to access against the service integrated with which Active Directory is deployed at the level granted to the authenticating account.","status":"published","published":"2022-05-24T22:28:53Z","modified":"2023-01-30T05:05:54Z","cwes":["CWE-287"],"updated_at":"2026-11-02T14:47:22.953418Z"}],"nvd":[{"id":"CVE-2020-26542","description":"An issue was discovered in the MongoDB Simple LDAP plugin through 2020-10-02 for Percona Server when using the SimpleLDAP authentication in conjunction with Microsoft’s Active Directory, Percona has discovered a flaw that would allow authentication to complete when passing a blank value for the account password, leading to access against the service integrated with which Active Directory is deployed at the level granted to the authenticating account.","status":"published","published":"2020-11-09T20:15:13.323Z","modified":"2026-06-17T03:08:10.08Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:06:24.137599Z"}]}}