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CVE-2026-110862

9.3 critical SSVC exploitation: none Deferred
NVD · CVE.org

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.

Fix

Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.

Change history 2

  1. StatusReceived → DeferredNVD modified 2026-10-16 18:25
  2. First seenCVSS 9.3NVD modified 2026-10-14 23:17

Affected (CPE criteria) 0

NVD has not attached CPE configurations yet.

References 2