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).

Score
CVSS 3.1 7.5 High
Status
Modified - secalert@redhat.com
Published
2025-09-02
Last modified
2026-10-14
Weaknesses
CWE-404, CWE-770

Affected products

References

 
 
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