#VU125738 Improper input validation in Apache Tomcat - CVE-2026-32990
Published: April 9, 2026 / Updated: April 10, 2026
Vulnerability identifier: #VU125738
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-32990
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Apache Tomcat
Apache Tomcat
Software vendor:
Apache Foundation
Apache Foundation
Description
The vulnerability allows a remote attacker to bypass strict SNI checks.
The vulnerability exists due to improper input validation in SNI name and host name validation when processing TLS connections. A remote attacker can use differences in case between the SNI name and host name to bypass strict SNI checks.
Remediation
Install security update from vendor's website.