{"id":"EUVD-2026-101745","enisaUuid":"b1d59bef-f013-3cfd-b322-1649683d11f2","description":"Better Auth from 1.4.0-beta.18 before 1.7.7 contains an authentication bypass vulnerability that allows unauthenticated attackers to sign in as other users by reusing OAuth state values as Magic Link tokens. Attackers can start an OAuth sign-in with a victim\u0027s email and submit the returned state to Magic Link verification, gaining sessions or creating falsely email-verified accounts.","datePublished":"Oct 14, 2026, 10:52:46 PM","dateUpdated":"Oct 15, 2026, 1:34:05 PM","baseScore":9.3,"baseScoreVersion":"4.0","baseScoreVector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","references":"https://github.com/better-auth/better-auth/security/advisories/GHSA-965c-763c-88jm\nhttps://www.vulncheck.com/advisories/better-auth-1.4.0-beta.18-before-1.7.7-authentication-bypass-via-magic-link\n","aliases":"CVE-2026-110862\nGHSA-p7w7-v3vp-w8x8\n","assigner":"VulnCheck","epss":0.32,"enisaIdProduct":[{"id":"169843d6-5d3c-38d6-b27f-5894b3cb4ad2","product":{"name":"better-auth","vendor":{"name":"better-auth"}},"product_version":"1.4.0-beta.18 \u003c1.7.7"}],"enisaIdVendor":[{"id":"222678a1-30d8-3375-a221-359803ff21c4","vendor":{"name":"better-auth"}}],"enisaIdVulnerability":[{"id":"09109c96-2d12-398b-b4ba-a7d317e100ae","vulnerability":{"id":"GHSA-p7w7-v3vp-w8x8","description":"Better Auth from 1.4.0-beta.18 before 1.7.7 contains an authentication bypass vulnerability that allows unauthenticated attackers to sign in as other users by reusing OAuth state values as Magic Link tokens. Attackers can start an OAuth sign-in with a victim\u0027s email and submit the returned state to Magic Link verification, gaining sessions or creating falsely email-verified accounts.","datePublished":"Oct 15, 2026, 12:31:18 AM","dateUpdated":"Oct 15, 2026, 12:31:18 AM","baseScore":0.0,"references":"https://github.com/better-auth/better-auth/security/advisories/GHSA-965c-763c-88jm\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-110862\nhttps://www.vulncheck.com/advisories/better-auth-1.4.0-beta.18-before-1.7.7-authentication-bypass-via-magic-link\n","enisa_id":"EUVD-2026-101745\n","aliases":"CVE-2026-110862\nGHSA-p7w7-v3vp-w8x8\n","epss":0.0,"dataProcessed":"Oct 25, 2026, 2:03:05 AM","vulnerabilityProduct":[],"vulnerabilityVendor":[]}},{"id":"22005a00-4d8b-3faf-b0b8-5a6777ab1b28","vulnerability":{"id":"CVE-2026-110862","description":"Better Auth from 1.4.0-beta.18 before 1.7.7 contains an authentication bypass vulnerability that allows unauthenticated attackers to sign in as other users by reusing OAuth state values as Magic Link tokens. Attackers can start an OAuth sign-in with a victim\u0027s email and submit the returned state to Magic Link verification, gaining sessions or creating falsely email-verified accounts.","datePublished":"Oct 14, 2026, 10:52:46 PM","dateUpdated":"Oct 15, 2026, 1:34:05 PM","status":"PUBLISHED","baseScore":9.3,"baseScoreVersion":"4.0","baseScoreVector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","references":"https://github.com/better-auth/better-auth/security/advisories/GHSA-965c-763c-88jm\nhttps://www.vulncheck.com/advisories/better-auth-1.4.0-beta.18-before-1.7.7-authentication-bypass-via-magic-link\n","enisa_id":"EUVD-2026-101745\n","assigner":"VulnCheck","epss":0.32,"dataProcessed":"Oct 27, 2026, 7:14:16 AM","vulnerabilityProduct":[{"id":"73f1eb53-1967-3f9e-b203-6a1dd47bd842","product":{"name":"better-auth","vendor":{"name":"better-auth"}},"product_version":"1.4.0-beta.18 \u003c1.7.7"}],"vulnerabilityVendor":[{"id":"ff4d3db6-a209-3eed-9874-fd7010e656e3","vendor":{"name":"better-auth"}}]}}],"enisaIdAdvisory":[]}