{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-56022","assignerOrgId":"9119a7d8-5eab-497f-8521-727c672e3725","state":"PUBLISHED","assignerShortName":"cisa-cg","dateReserved":"2026-06-18T14:15:41.670Z","datePublished":"2026-06-18T16:11:22.057Z","dateUpdated":"2026-06-24T19:55:03.365Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"Webmin accepts basic authentication without session cookies when an attacker provides the 'User-Agent: webmin' header, allowing bypass of additional MFA requirements. Fixed in 2.641."}],"affected":[{"vendor":"Webmin","product":"Webmin","defaultStatus":"unknown","versions":[{"version":"0","status":"affected","lessThan":"2.641","versionType":"custom"},{"version":"2.641","status":"unaffected"}]}],"problemTypes":[{"descriptions":[{"description":"CWE-308 Use of Single-factor Authentication","lang":"en","type":"CWE","cweId":"CWE-308"}]}],"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":5.3,"attackVector":"NETWORK","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","integrityImpact":"LOW","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"NONE","privilegesRequired":"NONE","confidentialityImpact":"NONE"}},{"cvssV4_0":{"version":"4.0","baseScore":6.9,"attackVector":"NETWORK","baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","userInteraction":"NONE","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","subIntegrityImpact":"NONE","vulnIntegrityImpact":"LOW","subAvailabilityImpact":"NONE","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","vulnConfidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-05-29T20:06:09.689996Z","id":"CVE-2026-56022","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"Webmin MFA bypass","references":[{"name":"url","url":"https://webmin.com/security/#webmin-prior-to-2641","tags":["release-notes"]},{"name":"url","url":"https://github.com/webmin/webmin/releases/tag/2.641","tags":["release-notes"]},{"name":"url","url":"https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-169-02.json"},{"name":"url","url":"https://www.cve.org/CVERecord?id=CVE-2026-56022","tags":["vdb-entry"]}],"credits":[{"value":"Adem El Adeb, vulone.com/vul1.com","lang":"en"}],"datePublic":"2026-06-18T00:00:00.000Z","providerMetadata":{"orgId":"9119a7d8-5eab-497f-8521-727c672e3725","shortName":"cisa-cg","dateUpdated":"2026-06-18T16:11:22.057Z"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-06-24T19:54:55.353387Z","id":"CVE-2026-56022","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":"2026-06-24T19:55:03.365Z"}}]}}