CVE-2026-15564 Wildfly-ejb: wildfly-iiop-openjdk: eap iiop listeners may permit unauthed deserialization
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-15564?
CVE-2026-15564 is a high-severity vulnerability in Red Hat JBoss Enterprise Application Platform 7, published on 29 Oct 2026.
Official description
Wildfly's IIOP listener may permit deserialization of input streams before authentication is performed. An attacker who can gain access to the IIOP port may be able to construct and send malicious objects and achieve deserialization, if the target EJB allows untyped method parameters, and depending on the potential gadget chains available in the running classpath.
Weakness: CWE-829
Which versions are affected by CVE-2026-15564?
How do I fix CVE-2026-15564?
No fix has been published for CVE-2026-15564 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-15564 being exploited?
There is no known exploitation of CVE-2026-15564 in the wild and no public exploit code.
Sources
Also known as GHSA-89hx-fmwj-cww5.