SB2026042108 - IBM DevOps Test Performance update for Undertow
Published: April 21, 2026
Security Bulletin ID
SB2026042108
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) Resource exhaustion (CVE-ID: CVE-2025-9784)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to application does not properly control consumption of internal resources when handling HTTP/2 requests. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.
The vulnerability was dubbed HTTP/2 Made You Reset Attack.
Remediation
Install update from vendor's website.