SB2026060333 - Authentication Bypass by Spoofing in IBM WebSphere Remote Server



SB2026060333 - Authentication Bypass by Spoofing in IBM WebSphere Remote Server

Published: June 3, 2026

Security Bulletin ID SB2026060333
CSH Severity
High
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

High 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Authentication Bypass by Spoofing (CVE-ID: CVE-2026-8644)

CWE-ID: CWE-290 - Authentication Bypass by Spoofing

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


The vulnerability allows a remote attacker to perform an authentication bypass by spoofing.

The vulnerability exists due to excessive data output by the application. A remote attacker can perform an authentication bypass by spoofing.


Remediation

Install update from vendor's website.