CVE-2026-15567: high-severity vulnerability in Red Hat Fuse 7
Wildfly: wildfly-iiop: wildfly-jacorb: wildfly: pre-auth denial of service on the iiop listener
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.5epss 0.9%
A flaw was found in Wildfly. A remote unauthenticated attacker can trigger OutOfMemoryError as CSIv2Util's GSS token decoder reads an attacker-controlled length field without bounds checking and attempts to allocate a byte array of that size.
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 Fuse 7Red Hat · Red Hat JBoss Enterprise Application Platform 7Red Hat · Red Hat JBoss Enterprise Application Platform 7.4.25Red Hat · Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7Red Hat · Red Hat JBoss Enterprise Application Platform 8.1.8.GARed 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 PackRed Hat · Red Hat Single Sign-On 7Related CVEs — Red Hat Fuse 7
In the same product, most dangerous first.
CVE-2024-5971HIGHUndertow: response write hangs in case of java 17 tlsv1.3 newsessionticketEPSS 2.9%CVE-2024-7885HIGHUndertow: improper state management in proxy protocol parsing causes information leakageEPSS 2.6%CVE-2026-93567HIGHIo.netty/netty-codec-http2: http/1 authority-form connect is translated to malformed http/2 connect with host-controlled :authorityEPSS 2.6%CVE-2025-9784HIGHUndertow: undertow madeyoureset http/2 ddos vulnerabilityEPSS 2.3%CVE-2026-93569HIGHIo.netty/netty-codec-http2: http/1 absolute-form host mismatch is translated to http/2 :authority, overriding the request-target authorityEPSS 2.2%CVE-2012-4550MEDIUMJboss enterprise application platform: jboss eap: jbeap: jboss enterprise application platform: unauthorized ejb access via authorization module bypassEPSS 2.1%
References
https://access.redhat.com/errata/RHSA-2026:53644https://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/errata/RHSA-2026:70277https://access.redhat.com/security/cve/CVE-2026-15567https://bugzilla.redhat.com/show_bug.cgi?id=2491620