Quick answers
- Is CVE-2026-15562 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-15562 being exploited in the wild.
- How severe is CVE-2026-15562?
- High severity, with a CVSS score of 7.5, published 11 August 2026.
- Which products and versions are affected?
- Red Hat Enterprise Application Platform <UNKNOWN>.
- Is there a fix for CVE-2026-15562?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-15562 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-15562?
- Check whether you run Red Hat Enterprise Application Platform at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
The vulnerability exists in EAP's jboss-remoting library and can be exploited via the Upgrade handshake mechanism on network ports 8080, 9990, or 4447. A remote unauthenticated attacker who can reach these ports can trigger out-of-memory (OOM) errors that impact the entire server, degrading or blocking legitimate requests. The attack requires network connectivity to the affected ports and completion of the jboss-remoting handshake. The flaw allows an attacker to conduct a denial-of-service attack without prior authentication or special privileges. Patches or updates are expected to be available from Red Hat.
Affected products
- Red Hat Enterprise Application Platform <UNKNOWN>
Timeline
- 2026-08-11: disclosed