CVE-2026-8620

IBM WebSphere Application Server and WebSphere Application Server Liberty are affected by multiple vulnerabilities when using when using Web Server Plug-ins

CVSS 7.5 HIGHEPSS 0.3%CWE-444

Vexday Risk Score

21Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 7.5EPSS 0.3%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado

Lifecycle

26 May 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

IBM Web Server Plug-ins for WebSphere Application Server and WebSphere Liberty 8.5, 9.0 IBM WebSphere Application Server and WebSphere Application Server Liberty are vulnerable to HTTP request smuggling in the Web Server Plug-ins through a specially crafted request.

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:N

Affected products

IBM · Web Server Plug-ins for WebSphere Application Server and WebSphere Liberty

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References

https://www.ibm.com/support/pages/node/7274072