Severity:
HIGH RISK
(8.3)
OAuth Account Linking Flaw (CWE-287) in Better Auth
CVE-2026-53516
Analyzed
Vulnerability Type
Category:
Authentication and Authorization Flaw
CWE:
CWE-287;CWE-345
Impact:
Account Takeover via Improper OAuth Account Linking
Severity:
HIGH RISK
(8.3)
CVSS Version:
3.1
Catch This CVE While Code Is Being Written
Detect vulnerable code directly in pull requests, so CVEs are fixed before merge.
Summary
Affected Context
Exploit Preconditions
Why This Happens
Potential Impact
General Mitigation Guidance
How Teams Detect Issues Like This
Frequently Asked Questions
Source
NDV
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