What is CVE-2026-11547?

CVE-2026-11547 is a medium-severity vulnerability in IBM Websphere Application Server - Liberty, classified under Server-Side Request Forgery (SSRF). CVSS score: 4.3/10. Published 2026-11-08.

How severe is CVE-2026-11547?

Medium severity. CVSS v3 base score is 4.3 out of 10.

SSRF in IBM Websphere Application Server - Liberty

CVE-2026-11547

IBM WebSphere Application Server Liberty 17.0.0.3 through 26.0.0.10 is affected by a server-side request forgery vulnerability in the Admin Center deploy validation endpoint.

Vulnerability class: SSRF (Server-Side Request Forgery)

Published 2026-11-08 · last modified 2026-11-08.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

IBM Websphere Application Server - Liberty

Weakness classification (CWE)

CWE-918 — Server-Side Request Forgery (SSRF)

References

www.ibm.com/support/pages/node/7295268 (vendor-advisory, patch)

Frequently asked questions

What is CVE-2026-11547?: CVE-2026-11547 is a medium-severity vulnerability in IBM Websphere Application Server - Liberty, classified under Server-Side Request Forgery (SSRF). CVSS score: 4.3/10. Published 2026-11-08.
How severe is CVE-2026-11547?: Medium severity. CVSS v3 base score is 4.3 out of 10.