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7.5HIGH

CVE-2025-9784 — A flaw was found in Undertow where malformed client requests can trigger server-side stream resets without…

Redhat · Build Of Apache Camel For Spring Boot · Published 2 Sept 2025 · Modified 26 Sept 2026

Description

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).

References

What to do
  1. Check whether Build Of Apache Camel For Spring Boot is in your asset inventory.
  2. Patch in the next maintenance window; prioritise internet-facing systems.
  3. Record the decision in your risk register for audit evidence.
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Link: adminadda.com/cve/CVE-2025-9784