Vulnerability Database
296,138
Total vulnerabilities in the database
CVE-2025-9784
A flaw was found in Undertow where malformed client requests can trigger server-side stream resets without triggering abuse counters. This issue, referred to as the "MadeYouReset" attack, allows malicious clients to induce excessive server workload by repeatedly causing server-side stream aborts. While not a protocol bug, this highlights a common implementation weakness that can be exploited to cause a denial of service (DoS).
| Software | From | Fixed in |
|---|---|---|
io.undertow / undertow-core
|
- | 2.3.18.final.x |