Vulnerability in IBM Websphere Application Server
CVE-2026-11806
IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.6 is affected by an arbitrary file read vulnerability with the restConnector-2.0 feature enabled.
Vulnerability class: HTTP Request Smuggling
EPSS: 0.003 (17.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Ibm Websphere_application_server
- Ibm Websphere Application Server - Liberty — versions 17.0.0.3
Weakness classification (CWE)
References
- psirt@us.ibm.com (vendor-advisory, patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-11806?
- CVE-2026-11806 is a high-severity vulnerability in IBM Websphere Application Server, classified under Inconsistent Interpretation of HTTP Requests (HTTP Request/Response Smuggling). CVSS score: 7.2/10. Published 2026-06-30.
- How severe is CVE-2026-11806?
- High severity. CVSS v3 base score is 7.2 out of 10.