SB2026100618 - IBM Control Center update for Spring Security



SB2026100618 - IBM Control Center update for Spring Security

Published: October 6, 2026

Security Bulletin ID SB2026100618
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Improper Authentication (CVE-ID: CVE-2026-47841)

CWE-ID: CWE-287 - Improper Authentication

CVSSv4: 9.1 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to bypass user verification during WebAuthn authentication.

The vulnerability exists due to improper comparison of UserVerificationRequirement in Spring Security WebAuthn support when handling serialized and deserialized HTTP session data in a distributed session store. A remote attacker can use an obtained user's authenticator device to complete WebAuthn authentication without satisfying the user verification step to bypass user verification during WebAuthn authentication.

Only applications that use WebAuthn authentication, explicitly configure userVerification = REQUIRED, and use a distributed HTTP session store are vulnerable.


Remediation

Install update from vendor's website.