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CVE-2026-67337 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

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.

Metrics

CVSS 3.x Severity and Vector Strings:

VolerionCVSS-B:5.4 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

CNA: [email protected]CVSS-B:6.5 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/better-auth/better-auth/security/advisories/GHSA-xg6x-h9c9-2m83	[email protected]	AdvisoryRemedyVendor
https://www.vulncheck.com/advisories/better-auth-before-two-factor-authentication-bypass-via-session-cookiecache	[email protected]	Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-288	Authentication Bypass Using an Alternate Path or Channel	[email protected]

Affected Products

Product	Versions
better-auth	>= 0, < 1.4.9
CPE cpe:2.3:a:better-auth:better_auth::::::node.js::* Remediation Upgrade: 1.4.9moderate effort Workaround:low effort Disable session.cookieCache when using two-factor authentication.

Change History

2 change records found show changes

Date	Action	Recorded By
Aug 3, 2026	CVE Modified	CISA-ADP
Aug 1, 2026	New CVE Received	[email protected]