Authentication Bypass in IBM WebSphere Application Server
CVE-2026-16187

6.5MEDIUM

Key Information:

Vendor

IBM
Status
Websphere Application Server
Vendor
CVE Published:
14 September 2026

What is CVE-2026-16187?

IBM WebSphere Application Server versions 9.0 and 8.5 are susceptible to a vulnerability that allows remote attackers to bypass authentication controls. By sending specially crafted unauthenticated requests, attackers may gain access to sensitive information. Users are advised to apply recommended security patches to mitigate this risk. For detailed information, please refer to the vendor advisory.

Affected Version(s)

WebSphere Application Server 9.0

WebSphere Application Server 8.5

References

https://www.ibm.com/support/pages/node/7286610
vendor-advisorypatch

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.