What is CVE-2026-11713?

CVE-2026-11713 is a medium-severity vulnerability in IBM Websphere Application Server - Liberty, classified under Incorrect Authorization. CVSS score: 5.4/10. Published 2026-10-13.

How severe is CVE-2026-11713?

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

Auth bypass in IBM Websphere Application Server - Liberty

CVE-2026-11713

IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.9 is affected by a privilege escalation vulnerability with the restConnector-2.0 feature enabled.

Vulnerability class: Broken Access Control

Published 2026-10-13 · last modified 2026-10-14.

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.

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-863 — Incorrect Authorization

References

www.ibm.com/support/pages/node/7291394 (vendor-advisory, patch)

Frequently asked questions

What is CVE-2026-11713?: CVE-2026-11713 is a medium-severity vulnerability in IBM Websphere Application Server - Liberty, classified under Incorrect Authorization. CVSS score: 5.4/10. Published 2026-10-13.
How severe is CVE-2026-11713?: Medium severity. CVSS v3 base score is 5.4 out of 10.