CVE-2026-3621
7.5 · HIGHOverview
CVE-2026-3621 is a high-severity vulnerability affecting ibm websphere_application_server. It was published on April 23, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical Description
IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.4 IBM WebSphere Application Server Liberty is vulnerable to identity spoofing under limited conditions when an application is deployed without authentication and authorization configured.
Remediation
Check the references section for vendor advisories and patches from ibm. Update websphere_application_server to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| ibm | websphere_application_server | >= 17.0.0.3, < 26.0.0.5 | Affected |
References
Frequently Asked Questions
What is CVE-2026-3621?
CVE-2026-3621 is a high-severity vulnerability affecting ibm websphere_application_server. It was published on April 23, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).
How severe is CVE-2026-3621?
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2026-3621?
Check the references section for vendor advisories and patches from ibm. Update websphere_application_server to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-3621?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-3621 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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