SB2026043008 - IBM Watson Discovery Cartridge update for Netty
Published: April 30, 2026
Security Bulletin ID
SB2026043008
CSH 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 vulnerability.
1) Allocation of Resources Without Limits or Throttling (CVE-ID: CVE-2026-33871)
CWE-ID: CWE-770 - Allocation of Resources Without Limits or Throttling
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to allocation of resources without limits or throttling in the "DefaultHttp2FrameReader" function within HTTP/2 server. A remote attacker can send a flood of CONTINUATION frames and cause a denial of service condition on the target system.
Remediation
Install update from vendor's website.