{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-107146","assignerOrgId":"4bb8329e-dd38-46c1-aafb-9bf32bcb93c6","state":"PUBLISHED","assignerShortName":"CERT-PL","dateReserved":"2026-10-07T08:44:03.177Z","datePublished":"2026-10-27T09:35:21.367Z","dateUpdated":"2026-10-27T09:35:21.367Z"},"containers":{"cna":{"providerMetadata":{"orgId":"4bb8329e-dd38-46c1-aafb-9bf32bcb93c6","shortName":"CERT-PL","dateUpdated":"2026-10-27T09:35:21.367Z"},"title":"Insufficient session expiration in twofactor_gauthenticator","problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-613","description":"CWE-613 Insufficient session expiration","type":"CWE"}]}],"impacts":[{"capecId":"CAPEC-112","descriptions":[{"lang":"en","value":"CAPEC-112 Brute Force"}]}],"affected":[{"vendor":"alexandregz","product":"twofactor_gauthenticator","collectionURL":"https://github.com","repo":"https://github.com/alexandregz/twofactor_gauthenticator","versions":[{"status":"affected","version":"0","lessThan":"4640889","versionType":"git"}],"defaultStatus":"unaffected"}],"cpeApplicability":[{"operator":"OR","nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:alexandregz:twofactor_gauthenticator:*:*:*:*:*:*:*:*","versionStartIncluding":"0","versionEndExcluding":"4640889"}]}]}],"descriptions":[{"lang":"en","value":"The twofactor_gauthenticator plugin for Roundcube is vulnerable to session persistence after failed 2FA verification. Due to the lack of server-side session destruction, an attacker can ignore the logout redirect and keep the session alive. This may allow an attacker who obtains user's password to e.g. brute force the second-factor code.\n\n\n\n\nThis issue was fixed in commit 4640889.","supportingMedia":[{"type":"text/html","base64":false,"value":"<div>The twofactor_gauthenticator plugin for Roundcube is vulnerable to session persistence after failed 2FA verification. Due to the lack of server-side session destruction, an attacker can ignore the logout redirect and keep the session alive. This may allow an attacker who obtains user's password&nbsp;to e.g. brute force the second-factor code.</div><div><br></div>This issue was fixed in commit 4640889."}]}],"tags":["x_open-source"],"references":[{"url":"https://cert.pl/en/posts/2026/10/CVE-2026-107145","tags":["third-party-advisory"]},{"url":"https://github.com/alexandregz/twofactor_gauthenticator/blob/master/CHANGES-2FA-SECURITY.en.md","tags":["patch"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"HIGH","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"LOW","subConfidentialityImpact":"NONE","vulnIntegrityImpact":"LOW","subIntegrityImpact":"NONE","vulnAvailabilityImpact":"LOW","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED","version":"4.0","baseSeverity":"MEDIUM","baseScore":6.3,"vectorString":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N"}}],"credits":[{"lang":"en","value":"Marek Figielski (Vanilla.pl)","type":"finder"}],"source":{"discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 1.0.3"}}}}