Security Bulletin: IBM Tivoli Netcool Impact is vulnerable to Improper Encoding due to Apache Log4j (CVE-2026-49844)

Summary Apache Log4j is shipped with IBM Tivoli Netcool Impact as part of its logging infrasture. Information about a security vulnerability affecting Apache Log4j has been published in a security bulletin. Vulnerability Details CVEID:CVE-2026-49844 DESCRIPTION: Improper encoding of non-finite...

Improper Encoding Or Escaping Of Output

Apache Log4j API is vulnerable to Improper Encoding or Escaping of Output. The vulnerability is due to improper encoding of non-finite floating-point values during MapMessage JSON serialization, which allows an attacker to inject NaN or Infinity values that produce malformed JSON and disrupt...

CVE-2026-49844

Improper encoding of non-finite floating-point values during MapMessage JSON serialization in Apache Log4j API produces output that is not valid JSON. This issue affects Apache Log4j API versions 2.13.1 through 2.25.4 and version 2.26.0. The fix for CVE-2026-34481 did not cover all code paths: wh...