Vulnerability · Published Sep 18, 2026 · Assigned by ibm
CVE-2026-11538IBM WebSphere Application Server prior to 9.0.5.29 and 8.5.5.31 are affected by multiple vulnerabilities
Low 3.7
In plain English
A low-severity security flaw 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 0.2% (higher than 6% of all known vulnerabilities).
Severity (CVSS 3.1)3.7Low
Exploit odds (30 days)0.2%top 94.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
IBM WebSphere Application Server 9.0 and 8.5 is affected by a log injection vulnerability through crafted LTPA token cookies.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| IBM | WebSphere Application Server | 9.08.5 |
Weakness: CWE-117 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
References
- https://www.ibm.com/support/pages/node/7286610 vendor-advisory, patch