NVD HIGH: CVE-2025-71403 — better-auth versions before 1.1.20 contain a bypass vulnerability in trustedOrig...

Saturday, August 1, 2026 at 01:16 PM UTC·Source: NIST NVD

Updated: Saturday, August 1, 2026 at 02:00 PM UTC

Executive Summary

better-auth versions before 1.1.20 contain a bypass vulnerability in trustedOrigins validation logic affecting absolute URLs and wildcard domains. Attackers can construct malicious callbackURL parameters that pass origin checks and trigger open redirects to steal sensitive tokens for account takeover.

Analysis

Indicators of Compromise (1)

CVE (1)

CVE-2025-71403

NVD MITRE CVE

Source Attribution

Originally published by NIST NVD on Aug 1, 2026. Verified by: NIST.

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