Input validation error in Apache Tomcat - CVE-2025-31651
Published: April 28, 2025 / Updated: March 13, 2026
Vulnerability identifier: #VU107995
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/U:Green
CVE-ID: CVE-2025-31651
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vendor: Apache Foundation
Affected software:
Apache Tomcat
Apache Tomcat
Detailed vulnerability description
The vulnerability allows a remote attacker to bypass rewrite rules.
The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can send a specially crafted input to the application and bypass configured rewrite rules.
How to mitigate CVE-2025-31651
Install updates from vendor's website.