A vulnerability was found in Undertow. This issue requires enabling the learning-push handler in the server's config, which is disabled by default, leaving the maxAge config in the handler unconfigured. The default is -1, which makes the handler vulnerable. If someone overwrites that config, the server is not subject to the attack. The attacker needs to be able to reach the server with a normal HTTP request.
CVE ID: CVE-2024-3653
EPSS Score: 0.04% (probability of being exploited)
EPSS Percentile: 15.25% (scored less or equal to compared to others)
EPSS Date: 2025-02-07 (when was this score calculated)