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).
Vendor
Product
CWE
Yayın Tarihi
2025-09-02 14:15:36
Güncelleme
2026-03-18 16:16:24
Source Identifier
secalert@redhat.com
KEV Date Added
-
Kategoriler
Referanslar
https://access.redhat.com/errata/RHSA-2025:23143
https://access.redhat.com/errata/RHSA-2026:0383
https://access.redhat.com/errata/RHSA-2026:0384
https://access.redhat.com/errata/RHSA-2026:0386
https://access.redhat.com/errata/RHSA-2026:3889
https://access.redhat.com/errata/RHSA-2026:3891
https://access.redhat.com/errata/RHSA-2026:3892
https://access.redhat.com/errata/RHSA-2026:4915
https://access.redhat.com/errata/RHSA-2026:4916
https://access.redhat.com/errata/RHSA-2026:4917
https://access.redhat.com/errata/RHSA-2026:4924
https://access.redhat.com/security/cve/CVE-2025-9784
https://bugzilla.redhat.com/show_bug.cgi?id=2392306
https://github.com/undertow-io/undertow/pull/1778
https://github.com/undertow-io/undertow/releases/tag/2.2.38.Final
https://issues.redhat.com/browse/UNDERTOW-2598
https://kb.cert.org/vuls/id/767506
https://www.kb.cert.org/vuls/id/767506