{"id":"CVE-2026-42210","summary":"Webmin 2FA requirement bypass","details":"Webmin is a web-based system administration tool for Unix-like servers. Prior to version 2.640, for Webmin accounts that require a second authentication factor (typically TOTP), an attacker with knowledge of the username and password can bypass the 2FA requirement by using Basic authentication. Webmin is a web-based system administration tool for Unix-like servers. As a workaround, apply the patch from commit da18a16c84ae5c0b78cad79609cb0efb174000ec manually.","aliases":["GHSA-qpww-fff2-6fgv"],"modified":"2026-07-22T05:32:27.284446359Z","published":"2026-07-20T17:03:09.650Z","database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-287"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42210.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42210.json"},{"type":"ADVISORY","url":"https://github.com/webmin/webmin/security/advisories/GHSA-qpww-fff2-6fgv"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-42210"},{"type":"FIX","url":"https://github.com/webmin/webmin/commit/da18a16c84ae5c0b78cad79609cb0efb174000ec"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/webmin/webmin","events":[{"introduced":"0"},{"fixed":"da18a16c84ae5c0b78cad79609cb0efb174000ec"}],"database_specific":{"source":["AFFECTED_FIELD","REFERENCES"],"extracted_events":[{"introduced":"0"},{"fixed":"2.640"}]}}],"versions":["2.630","2.621","2.620","2.610","2.600","2.520","2.510","2.501","2.402","2.401","2.400","2.302","2.301","2.202","2.201","2.200","2.111","2.110","2.105","2.104","2.103","2.100","2.021","2.020","2.013","2.012","2.011","2.010","2.003","2.001","2.000","1.999","1.998","1.996","1.995","1.994","1.993","1.991","1.990","1.984","1.983","1.982","1.980","1.974","1.973","1.972","1.970","1.962","1.960","1.955","1.954","1.953","1.951","1.950","1.941","1.940","1.930","1.920","1.910","1.900","1.890","1.880","1.870","1.860","1.850","1.840","1.831","1.830","1.820","1.810","1.801","1.800","1.790","1.780","1.770","1.760","1.750","1.740","1.730","1.720","1.710","1.700"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-42210.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N"}]}