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Security Advisories

CVE-2025-9784

Published

Last updated

NVD

https://nvd.nist.gov/vuln/detail/CVE-2025-9784

Severity

7.5

High

CVSS V3

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

Affected packages


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