CVE-2026-15561CWE-770denial-of-service

CVE-2026-15561

High · published August 11, 2026

CVSS v3.1
7.5
EPSS
0%
Percentile
39.0
In the wild
Unconfirmed
What it is

A flaw was found in EAP's undertow http/1.1 chunked-transfer decoder. missing limits on size and count would allow an attacker to use an unauthenticated connection to drive the JVM to an OutOfMemory error, stopping all deployments on the listener, and achieving Denial of Service.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00461 · 39.0th percentile
Weakness
CWE-770 · Allocation of Resources Without Limits or Throttling
Published
2026-08-11T13:17Z
References (10)
https://access.redhat.com/errata/RHSA-2026:53644 · [email protected]https://access.redhat.com/errata/RHSA-2026:53645 · [email protected]https://access.redhat.com/errata/RHSA-2026:53646 · [email protected]https://access.redhat.com/errata/RHSA-2026:53806 · [email protected]https://access.redhat.com/errata/RHSA-2026:70228 · [email protected]https://access.redhat.com/errata/RHSA-2026:70229 · [email protected]https://access.redhat.com/errata/RHSA-2026:70230 · [email protected]https://access.redhat.com/errata/RHSA-2026:70277 · [email protected]https://access.redhat.com/security/cve/CVE-2026-15561 · [email protected]https://bugzilla.redhat.com/show_bug.cgi?id=2483133 · [email protected]
EPSS history
Timeline
  • 11 AUG 08:49Z
    Undertow-core: oom via missing limits in chunked trailer in eap's undertow
    cvelistv5