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CVE-2026-110862

Better Auth 1.4.0-beta.18 before 1.7.7 Authentication Bypass via Magic Link PUBLISHED

Description (CNA)

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's email and submit the returned state to Magic Link verification, gaining sessions or creating falsely email-verified accounts.

Affected (CNA)

Vendor / productVersions
better-auth / better-authaffected 1.4.0-beta.18 before 1.7.7; unaffected 1.7.7

CWE

CWE-287

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.