CVE-2026-4410 IBM WebSphere Application Server and WebSphere Application Server Liberty are affected by a denial of service

What is CVE-2026-4410?

CVE-2026-4410 is a medium-severity denial of service vulnerability in Ibm Websphere Application Server, published on 27 May 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

IBM WebSphere Application Server - Liberty 19.0.0.7 through 26.0.0.5 and IBM WebSphere Application Server 9.0, and 8.5 and WebSphere Application Server Liberty are vulnerable to a denial of service, caused by sending a specially-crafted request. A remote attacker could exploit this vulnerability to cause the server to consume memory resources.

Weakness: CWE-400

Which versions are affected by CVE-2026-4410?

It affects 1 product.

Products include Ibm Websphere Application Server.

How do I fix CVE-2026-4410?

No fix has been published for CVE-2026-4410 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2026-4410 being exploited?

There is no known exploitation of CVE-2026-4410 in the wild and no public exploit code.

Other vulnerabilities in Ibm Websphere Application Server

• CVE-2015-1920 Code injection in n/a Critical 10.0
• CVE-2013-0462 Other in n/a Critical 10.0
• CVE-2011-1377 Security feature bypass in n/a Critical 10.0
• CVE-2010-3186 Other in n/a Critical 10.0
• CVE-2009-1899 Information disclosure in n/a Critical 10.0

All Ibm Websphere Application Server vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-crfv-r2fv-7458.