Vulnerability · Published Oct 13, 2026 · Assigned by ibm
CVE-2026-103499IBM WebSphere Application Server and WebSphere Application Server Liberty are affected by a denial of service
High 7.5
In plain English
A high-severity uncontrolled resource consumption in WebSphere Application Server from IBM. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 37% of all known vulnerabilities).
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.4%top 62.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.10 and IBM WebSphere Application Server 8.5, and 9.0 Liberty could allow a remote unauthenticated attacker to cause a denial of service due to uncontrolled resource consumption.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| IBM | WebSphere Application Server - Liberty | 17.0.0.3 – through 26.0.0.10 |
| IBM | WebSphere Application Server | 8.59.0 |
Weakness: CWE-400 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
- https://www.ibm.com/support/pages/node/7292214 vendor-advisory, patch