SB2026071046 - Inconsistent interpretation of HTTP requests in IBM WebSphere Hybrid Edition

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Main Vulnerability Database SB2026071046

SB2026071046 - Inconsistent interpretation of HTTP requests in IBM WebSphere Hybrid Edition

Published: July 10, 2026

Security Bulletin ID SB2026071046
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Inconsistent interpretation of HTTP requests (CVE-ID: CVE-2026-11806)

CWE-ID: CWE-444 - Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote privileged user to perform HTTP request smuggling attacks.

The vulnerability exists due to improper validation of HTTP requests with the restConnector-2.0 feature enabled. A remote privileged user can send a specially crafted HTTP request to the server and smuggle arbitrary HTTP headers.

Successful exploitation of vulnerability may allow an attacker to poison HTTP cache and perform phishing attacks.


Remediation

Install update from vendor's website.

References