CVE-2026-9338: CWE-400 Uncontrolled Resource Consumption in IBM WebSphere Application Server
IBM WebSphere Application Server 9.0, and 8.5 is vulnerable to a denial of service, caused by sending a specially-crafted request. A remote attacker could exploit this vulnerability to trigger excessive resource consumption, potentially leading to reduced availability of the affected service.
AI Analysis
Technical Summary
CVE-2026-9338 is a denial of service vulnerability in IBM WebSphere Application Server versions 8.5 and 9.0. The flaw arises from uncontrolled resource consumption triggered by specially-crafted remote requests. An unauthenticated attacker can exploit this issue to degrade service availability by exhausting system resources. The CVSS 3.1 vector indicates network attack vector, low attack complexity, no privileges or user interaction required, and impact limited to availability loss.
Potential Impact
Exploitation of this vulnerability can lead to denial of service conditions by consuming excessive resources on the affected IBM WebSphere Application Server instances. This may cause service degradation or outages, impacting availability but not confidentiality or integrity.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no patch or workaround information is provided, administrators should monitor IBM's official advisories for updates and consider implementing network-level protections to limit exposure to untrusted sources until a fix is available.
CVE-2026-9338: CWE-400 Uncontrolled Resource Consumption in IBM WebSphere Application Server
Description
IBM WebSphere Application Server 9.0, and 8.5 is vulnerable to a denial of service, caused by sending a specially-crafted request. A remote attacker could exploit this vulnerability to trigger excessive resource consumption, potentially leading to reduced availability of the affected service.
CVSS v3.1
Score 5.3medium
Affected software
IBM
WebSphere Application Server
pkg:maven/com.ibm.websphere/websphere-application-servercpe:2.3:a:ibm:websphere_application_server:9.0:*:*:*:*:*:*:*cpe:2.3:a:ibm:websphere_application_server:9.0.0:*:*:*:*:*:*:*cpe:2.3:a:ibm:websphere_application_server:8.5:*:*:*:*:*:*:*cpe:2.3:a:ibm:websphere_application_server:8.5.0:*:*:*:*:*:*:*Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-9338 is a denial of service vulnerability in IBM WebSphere Application Server versions 8.5 and 9.0. The flaw arises from uncontrolled resource consumption triggered by specially-crafted remote requests. An unauthenticated attacker can exploit this issue to degrade service availability by exhausting system resources. The CVSS 3.1 vector indicates network attack vector, low attack complexity, no privileges or user interaction required, and impact limited to availability loss.
Potential Impact
Exploitation of this vulnerability can lead to denial of service conditions by consuming excessive resources on the affected IBM WebSphere Application Server instances. This may cause service degradation or outages, impacting availability but not confidentiality or integrity.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no patch or workaround information is provided, administrators should monitor IBM's official advisories for updates and consider implementing network-level protections to limit exposure to untrusted sources until a fix is available.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ibm
- Date Reserved
- 2026-05-22T23:51:33.683Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6aa2fe72d29482f9abfdcc03
Added to database: 09/10/2026, 19:01:06 UTC
Last enriched: 09/10/2026, 19:02:05 UTC
Last updated: 09/10/2026, 22:12:32 UTC
Views: 9
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