SB2026040216 - IBM Cloud Pak for Data System 2.0 update for Werkzeug
Published: April 2, 2026
Security Bulletin ID
SB2026040216
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper Handling of Windows Device Names (CVE-ID: CVE-2025-66221)
The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.
The vulnerability exists due to the "safe_join" function allows path segments with Windows device names. A remote attacker can cause reading of the file to hang indefinitely.
Remediation
Install update from vendor's website.