SB20260721122 - Input validation error in next-auth
Published: July 21, 2026
Security Bulletin ID
SB20260721122
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Input validation error (CVE-ID: N/A)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote user to disclose sensitive information.
The vulnerability exists due to improper input validation in the email sign-in flow when processing email-based authentication requests. A remote user can submit a crafted email sign-in request to disclose sensitive information.
Remediation
Install update from vendor's website.