CVE-2026-9320: ibm websphere_application_server Uncontrolled Resource Consumption
Vulnerability summary
CVE-2026-9320 is a high (CVSS 7.5) Uncontrolled Resource Consumption vulnerability in ibm websphere_application_server. EPSS estimates a 0.56% chance of exploitation in the next 30 days, higher than 45.8% of scored vulnerabilities.
Timeline
- 22-06-2026PublishedVulnerability first disclosed.
- 22-06-2026Last modifiedVulnerability information updated.
Description
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 metrics
2 scores · 2 sources · 1 version- CVE.orgCNA5.9MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:HDiffers
EPSS trend
Probability
0.56%
Chance of exploitation in the next 30 days
Percentile
46%
Versus all other CVEs
30-day change
0.00 pp
From 0.56% on 20-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ibm2 products
- websphere_application_server≥ 9.0.0, ≤ 7.0.2 Interim Fix 035 | ≥ 8.5.0, ≤ 7.0.3 Interim Fix 017 | ≥ 8.5.0.0, < 8.5.5.30 | ≥ 9.0.0.0, < 9.0.5.29 | ≥ 17.0.0.3, < 26.0.0.7
- websphere application server - liberty≥ 17.0.0.3, ≤ 26.0.0.6
1 vendor · 2 products