{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-63437","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-07-16T19:35:57.767Z","datePublished":"2026-11-06T20:16:05.692Z","dateUpdated":"2026-11-06T20:16:05.692Z"},"containers":{"cna":{"title":"2FAuth: Missing Authorization on Share Recipients Endpoint Allows Cross-User Account Enumeration","problemTypes":[{"descriptions":[{"cweId":"CWE-639","lang":"en","description":"CWE-639: Authorization Bypass Through User-Controlled Key","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-862","lang":"en","description":"CWE-862: Missing Authorization","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","version":"3.1"}}],"references":[{"name":"https://github.com/Bubka/2FAuth/security/advisories/GHSA-m52c-63g8-qg5c","tags":["x_refsource_CONFIRM"],"url":"https://github.com/Bubka/2FAuth/security/advisories/GHSA-m52c-63g8-qg5c"},{"name":"https://github.com/Bubka/2FAuth/commit/08753afbd847da8fa285e2ad857693ff88e46b84","tags":["x_refsource_MISC"],"url":"https://github.com/Bubka/2FAuth/commit/08753afbd847da8fa285e2ad857693ff88e46b84"},{"name":"https://github.com/Bubka/2FAuth/releases/tag/v8.0.0","tags":["x_refsource_MISC"],"url":"https://github.com/Bubka/2FAuth/releases/tag/v8.0.0"}],"affected":[{"vendor":"Bubka","product":"2FAuth","versions":[{"version":"< 8.0.0","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-11-06T20:16:05.692Z"},"descriptions":[{"lang":"en","value":"2FAuth is a web app to manage Two-Factor Authentication (2FA) accounts and generate their security codes. Prior to 8.0.0, the recipients() method in app/Api/v1/Controllers/TwoFAccountShareController.php receives a caller-selected TwoFAccount through Laravel model binding but does not call the manageShares authorization policy before listing its recipients. When account sharing is enabled, an authenticated user can call GET /api/v1/twofaccounts/{victimId}/recipients for accounts owned by other users, enumerate registered user IDs and display names, test exact email addresses with filter[nameOrEmail], and inspect each account's sharing relationships. This issue is fixed in version 8.0.0."}],"source":{"advisory":"GHSA-m52c-63g8-qg5c","discovery":"UNKNOWN"}}}}