CVE-2026-11537 PUBLISHED

IBM WebSphere Application Server prior to 9.0.5.29 and 8.5.5.31 are affected by multiple vulnerabilities

Assigner: ibm
Reserved: 08.06.2026 Published: 18.09.2026 Updated: 18.09.2026

IBM WebSphere Application Server 9.0, and 8.5 could allow a remote attacker to obtain sensitive information about the file system through the FileTransfer servlet.

Metrics

CVSS Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CVSS Score: 4.3

Product Status

Vendor IBM
Product WebSphere Application Server
Versions
  • Version 9.0 is affected
  • Version 8.5 is affected

Solutions

IBM strongly recommends addressing the vulnerabilities now by applying the fix pack(s) listed below.

For IBM WebSphere Application Server traditional:

For V9.0.0.0 through 9.0.5.28: · Apply Fix Pack 9.0.5.29 SB0030823 (availability September 2026) or later fix pack. 

For V8.5.0.0 through 8.5.5.30: · Apply Fix Pack 8.5.5.31 https://www.ibm.com/support/pages/node/7285869 (availability September 2026) or later fix pack.

References

Problem Types

  • CWE-650 Trusting HTTP Permission Methods on the Server Side CWE