Undertow-core: oom via missing limits in chunked trailer in eap's undertow
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.5epss 0.4%
exploitation probability
0.4%top 69% of all CVEs
observed exploitation
nono source reports it
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
Red Hat · Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7Red Hat · Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8Red Hat · Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 9Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 10Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8Red Hat · Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9Red Hat · Red Hat JBoss Enterprise Application Platform Expansion PackReferences
https://access.redhat.com/errata/RHSA-2026:53644https://access.redhat.com/errata/RHSA-2026:53645https://access.redhat.com/errata/RHSA-2026:53646https://access.redhat.com/errata/RHSA-2026:53806https://access.redhat.com/errata/RHSA-2026:70228https://access.redhat.com/errata/RHSA-2026:70229https://access.redhat.com/errata/RHSA-2026:70230https://access.redhat.com/security/cve/CVE-2026-15561https://bugzilla.redhat.com/show_bug.cgi?id=2483133