What is CVE-2026-11545?

CVE-2026-11545 is a low-severity vulnerability in IBM Websphere Application Server, classified under Missing Authorization. CVSS score: 3.7/10. Published 2026-09-18.

How severe is CVE-2026-11545?

Low severity. CVSS v3 base score is 3.7 out of 10.

Auth bypass in IBM Websphere Application Server

CVE-2026-11545

IBM WebSphere Application Server 8.5 and 9.0 could allow a remote attacker to obtain sensitive information from the administrative console due to missing authorization checks.

Vulnerability class: Broken Access Control

Published 2026-09-18 · last modified 2026-09-22.

CVSS v3 metric

CVSS v3 base score 3.7 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.003 (27.2th percentile), scored 2026-11-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 27th percentile — 27.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.001

Affected products

IBM Websphere Application Server — versions 8.5, 9.0

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

www.ibm.com/support/pages/node/7286730 (vendor-advisory, patch)

Frequently asked questions

What is CVE-2026-11545?: CVE-2026-11545 is a low-severity vulnerability in IBM Websphere Application Server, classified under Missing Authorization. CVSS score: 3.7/10. Published 2026-09-18.
How severe is CVE-2026-11545?: Low severity. CVSS v3 base score is 3.7 out of 10.