What is CVE-2026-11897?

CVE-2026-11897 is a high-severity vulnerability in IBM Websphere Application Server, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2026-07-30.

How severe is CVE-2026-11897?

High severity. CVSS v3 base score is 7.5 out of 10.

Resource exhaustion in IBM Websphere Application Server

CVE-2026-11897

IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.7 is vulnerable to a denial of service, caused by sending a specially crafted request. A remote attacker could exploit this vulnerability to cause the server to consume memory resources.

EPSS: 0.003 (23.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Ibm Websphere_application_server
Ibm Websphere Application Server - Liberty — versions 17.0.0.3

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

References

psirt@us.ibm.com (vendor-advisory, patch, Vendor Advisory)

Frequently asked questions

What is CVE-2026-11897?: CVE-2026-11897 is a high-severity vulnerability in IBM Websphere Application Server, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2026-07-30.
How severe is CVE-2026-11897?: High severity. CVSS v3 base score is 7.5 out of 10.