{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-42210","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-04-25T05:04:37.028Z","datePublished":"2026-07-20T17:03:09.650Z","dateUpdated":"2026-07-20T17:41:48.414Z"},"containers":{"cna":{"title":"Webmin 2FA requirement bypass","problemTypes":[{"descriptions":[{"cweId":"CWE-287","lang":"en","description":"CWE-287: Improper Authentication","type":"CWE"}]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"LOW","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM","vectorString":"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","version":"4.0"}}],"references":[{"name":"https://github.com/webmin/webmin/security/advisories/GHSA-qpww-fff2-6fgv","tags":["x_refsource_CONFIRM"],"url":"https://github.com/webmin/webmin/security/advisories/GHSA-qpww-fff2-6fgv"},{"name":"https://github.com/webmin/webmin/commit/da18a16c84ae5c0b78cad79609cb0efb174000ec","tags":["x_refsource_MISC"],"url":"https://github.com/webmin/webmin/commit/da18a16c84ae5c0b78cad79609cb0efb174000ec"}],"affected":[{"vendor":"webmin","product":"webmin","versions":[{"version":"< 2.640","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-07-20T17:03:09.650Z"},"descriptions":[{"lang":"en","value":"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."}],"source":{"advisory":"GHSA-qpww-fff2-6fgv","discovery":"UNKNOWN"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-20T17:41:30.708298Z","id":"CVE-2026-42210","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-07-20T17:41:48.414Z"}}]}}