Vulnerabilities CVE-2026-67337

CVE-2026-67337

High

Open

TLP:CLEAR

better-auth before 1.4.9 Two-Factor Authentication Bypass via session.cookieCache

NVD CVE.org

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Description

better-auth versions before 1.4.9 contain a two-factor authentication bypass vulnerability when session.cookieCache is enabled. Attackers with valid primary credentials can access authenticated routes without completing second-factor verification by exploiting premature session caching.

Details

CVSS Score: 7.1
EPSS Score ⓘ: 0.27%

18.9th percentile
CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Confidence: 90%
Published: Aug 1, 2026
Last Modified: Aug 3, 2026

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