OutOfMemoryError Vulnerability in Wildfly by Red Hat
CVE-2026-15567

7.5HIGH

Key Information:

Vendor

Red Hat
Status
Red Hat Jboss Enterprise Application Platform 7.4 Els On Rhel 7
Red Hat Jboss Enterprise Application Platform 7.4 Els On Rhel 8
Red Hat Jboss Enterprise Application Platform 7.4 Els On Rhel 9
Red Hat Fuse 7
Vendor
CVE Published:
11 August 2026

What is CVE-2026-15567?

A vulnerability exists in Wildfly, where a remote unauthenticated attacker can exploit the GSS token decoder in CSIv2Util. By manipulating the length field in the input, the attacker can potentially trigger an OutOfMemoryError due to improper bounds checking when allocating a byte array. This flaw may lead to a denial of service, disrupting service availability.

Affected Version(s)

Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 0:2.16.0-22.redhat_00057.1.el7eap

Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 0:2.3.14-11.SP11_redhat_00001.1.el7eap

Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 0:1.5.26-2.Final_redhat_00001.1.el7eap

References

https://access.redhat.com/errata/RHSA-2026:53644
vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:53645
vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:53646
vendor-advisoryx_refsource_REDHAT

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.