VulnSocial

CVE-2026-110862

LOWCVSS 9.3 · CRITICAL

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

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

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0.0/ 10 priority

Sources & remediation

Other references
Weakness type (CWE)
CWE-287

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

  • 1 mentions across 1 observed day

What's happening

  • 1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-10-15: 110-15
Referenced assets1 URL
Full discourse1 post
  • Severity Daily@severitydaily

    Better Auth kept OAuth state and magic-link tokens in one database column, so a CSRF nonce redeems as a login token. Fixed September 30; the CVE landed tonight. No exploitation reported. https://severitydaily.com/better-auth-cve-2026-110862-oauth-state-redeems-as-magic-link-token-1-7-7-no-known-cve/

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    33 followersView on X

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