SB2026091581 - Multiple vulnerabilities in IBM Tivoli Netcool/OMNIbus WebGUI
Published: September 15, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 vulnerabilities.
1) Allocation of Resources Without Limits or Throttling (CVE-ID: CVE-2026-73635)
CWE-ID: CWE-770 - Allocation of Resources Without Limits or Throttling
CVSSv4: 8.7 [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]
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to allocation of resources without limits or throttling in localized-text caches when processing requests with attacker-controlled locale values. A remote attacker can send repeated requests using distinct locale values to cause a denial of service.
Only applications that do not configure a fixed locale are affected.
2) Resource exhaustion (CVE-ID: CVE-2026-73634)
CWE-ID: CWE-400 - Resource exhaustion
CVSSv4: 8.7 [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]
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to uncontrolled resource consumption in an endpoint collecting Content Security Policy violation reports when handling a submitted violation report. A remote attacker can send a specially crafted request with an oversized report body to cause a denial of service.
The core distribution maps no such endpoint by default; only applications that collect violation reports are affected.
Remediation
Install update from vendor's website.