{"api_version":"1","generated_at":"2026-04-23T05:57:50+00:00","cve":"CVE-2020-26542","urls":{"html":"https://cve.report/CVE-2020-26542","api":"https://cve.report/api/cve/CVE-2020-26542.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2020-26542","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2020-26542"},"summary":{"title":"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.","state":"PUBLIC","assigner":"cve@mitre.org","published_at":"2020-11-09 20:15:00","updated_at":"2020-11-23 20:50:00"},"problem_types":["CWE-287"],"metrics":[],"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/","name":"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/","refsource":"CONFIRM","tags":["Release Notes","Vendor Advisory"],"title":"Percona Distribution for MySQL (PXC Variant) 8.0.20, Fixes For Security Vulnerability: Release Roundup October 13, 2020 - Percona Database Performance Blog","mime":"text/html","httpstatus":"200","archivestatus":"0"},{"url":"https://jira.percona.com/browse/PS-7358","name":"https://jira.percona.com/browse/PS-7358","refsource":"MISC","tags":["Issue Tracking","Permissions Required","Vendor Advisory"],"title":"Log in - Percona JIRA","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://jira.percona.com/browse/PSMDB-726","name":"https://jira.percona.com/browse/PSMDB-726","refsource":"MISC","tags":["Issue Tracking","Permissions Required","Vendor Advisory"],"title":"Log in - Percona JIRA","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.percona.com/doc/percona-distribution-mysql/8.0/release-notes-pxc-v8.0.20.upd2.html","name":"https://www.percona.com/doc/percona-distribution-mysql/8.0/release-notes-pxc-v8.0.20.upd2.html","refsource":"CONFIRM","tags":["Release Notes","Vendor Advisory"],"title":"Percona Distribution for MySQL 8.0.20 using Percona XtraDB Cluster Second Update","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.cve.org/CVERecord?id=CVE-2020-26542","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-26542","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2020","cve_id":"26542","vulnerable":"1","versionEndIncluding":"2020-10-02","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"percona","cpe5":"percona_server","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"mongodb","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"CVE_data_meta":{"ASSIGNER":"cve@mitre.org","ID":"CVE-2020-26542","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"n/a","version":{"version_data":[{"version_value":"n/a"}]}}]},"vendor_name":"n/a"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"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."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"references":{"reference_data":[{"refsource":"CONFIRM","name":"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/","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/"},{"refsource":"MISC","name":"https://jira.percona.com/browse/PS-7358","url":"https://jira.percona.com/browse/PS-7358"},{"refsource":"MISC","name":"https://jira.percona.com/browse/PSMDB-726","url":"https://jira.percona.com/browse/PSMDB-726"},{"refsource":"CONFIRM","name":"https://www.percona.com/doc/percona-distribution-mysql/8.0/release-notes-pxc-v8.0.20.upd2.html","url":"https://www.percona.com/doc/percona-distribution-mysql/8.0/release-notes-pxc-v8.0.20.upd2.html"}]}},"nvd":{"publishedDate":"2020-11-09 20:15:00","lastModifiedDate":"2020-11-23 20:50:00","problem_types":["CWE-287"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseScore":9.8,"baseSeverity":"CRITICAL"},"exploitabilityScore":3.9,"impactScore":5.9},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:N/AC:L/Au:N/C:P/I:P/A:P","accessVector":"NETWORK","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"PARTIAL","availabilityImpact":"PARTIAL","baseScore":7.5},"severity":"HIGH","exploitabilityScore":10,"impactScore":6.4,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:percona:percona_server:*:*:*:*:*:mongodb:*:*","versionEndIncluding":"2020-10-02","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2020","CveId":"26542","Ordinal":"187964","Title":"CVE-2020-26542","CVE":"CVE-2020-26542","Year":"2020"},"notes":[{"CveYear":"2020","CveId":"26542","Ordinal":"1","NoteData":"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.","Type":"Description","Title":null},{"CveYear":"2020","CveId":"26542","Ordinal":"2","NoteData":"2020-11-09","Type":"Other","Title":"Published"},{"CveYear":"2020","CveId":"26542","Ordinal":"3","NoteData":"2020-11-12","Type":"Other","Title":"Modified"}]}}}