CVE-2026-9071highCWE-400

CVE-2026-9071: high-severity vulnerability in IBM WebSphere Application Server

IBM WebSphere Application Server and WebSphere Application Server Liberty are affected by Uncontrolled Resource Consumption

Published · Updated

Follow this CVE+ Monitor WebSphere Application Server+ Monitor WebSphere Application Server - Liberty

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 7.5epss 0.6%
IBM WebSphere Application Server 9.0, and 8.5 and IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.6 are 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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
IBM · WebSphere Application ServerIBM · WebSphere Application Server - Liberty
Related CVEs — IBM WebSphere Application Server

In the same product, most dangerous first.

CVE-2019-4279CRITICALCVE-2019-4279EPSS 79.9%CVE-2020-4450CRITICALCVE-2020-4450EPSS 34.7%CVE-2025-36038CRITICALIBM WebSphere Application Server code executionEPSS 13.3%CVE-2020-4464HIGHCVE-2020-4464EPSS 13.2%CVE-2020-4448CRITICALCVE-2020-4448EPSS 12.5%CVE-2020-4589HIGHCVE-2020-4589EPSS 8.5%