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).
CVSS Metrics
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Attack Vector
- network
- Complexity
- low
- Privileges
- none
- User Action
- none
- Scope
- unchanged
- Confidentiality
- none
- Integrity
- none
- Availability
- high
- Weaknesses
- CWE-770CWE-404
Metadata
- Primary Vendor
- REDHAT
- Published
- 9/2/2025
- Last Modified
- 1/8/2026
- Source
- NIST NVD
- Note: Verify all details with official vendor sources before applying patches.
Affected Products
redhat : build_of_apache_camel_for_spring_bootredhat : fuseredhat : jboss_enterprise_application_platformredhat : jboss_enterprise_application_platformredhat : jboss_enterprise_application_platform_expansion_packredhat : process_automationredhat : single_sign-onredhat : undertowredhat : enterprise_linuxredhat : enterprise_linux
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