What is CVE-2026-1561?

CVE-2026-1561 is a medium-severity vulnerability in Ibm Websphere Application Server Liberty, classified under Server-Side Request Forgery (SSRF). CVSS score: 5.4/10. Published 2026-03-25.

How severe is CVE-2026-1561?

Medium severity. CVSS v3 base score is 5.4 out of 10.

SSRF in Ibm Websphere Application Server Liberty

CVE-2026-1561

IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.3 IBM WebSphere Application Server Liberty is vulnerable to server-side request forgery (SSRF). This may allow remote attacker to send unauthorized requests from the system…

Vulnerability class: SSRF (Server-Side Request Forgery)

EPSS: 0.000 (13.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N.

Affected products

Ibm Websphere Application Server Liberty — versions 17.0.0.3

Weakness classification (CWE)

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

References

www.ibm.com/support/pages/node/7267347 (vendor-advisory, patch)

Frequently asked questions

What is CVE-2026-1561?: CVE-2026-1561 is a medium-severity vulnerability in Ibm Websphere Application Server Liberty, classified under Server-Side Request Forgery (SSRF). CVSS score: 5.4/10. Published 2026-03-25.
How severe is CVE-2026-1561?: Medium severity. CVSS v3 base score is 5.4 out of 10.