CLEANSTART-2026-GW86512 Apache Log4j Core's Rfc5424Layout https://logging

Security vulnerability affects the spark-sc212-jdk17-py311 package. Apache Log4j Core's Rfc5424Layout https://logging...

PT-2026-108415

Security vulnerability affects the spark-sc212-jdk17-py311 package. Apache Log4j Core's Rfc5424Layout https://logging...

Apache Log4j Core: Silent log event loss in XmlLayout due to unescaped XML 1.0 forbidden characters

CVE-2026-34480 Apache Log4j Core's XmlLayout https://logging.apache.org/log4j/2.x/manual/layouts.htmlXmlLayout , in versions up to and including 2.25.3, fails to sanitize characters forbidden by the XML 1.0 specification https://www.w3.org/TR/xml/charsets producing invalid XML output whenever a l...

Apache Log4j API: Improper serialization of non-finite floating-point values in MapMessage.asJson()

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...

CLEANSTART-2026-YP50898 Apache Log4j Core's XmlLayout https://logging

Multiple security vulnerabilities affect the wso2is package. Apache Log4j Core's XmlLayout https://logging. See references for individual vulnerability details...

Security Bulletin: Vulnerability in Apache Log4j API affects DB2 Dev Extension (CVE-2026-49844)

Summary Upgraded log4j-api to 2.25.5 to remediate CVE-2026-49844 CWE-116: Improper Encoding of non-finite floating-point values in MapMessage JSON serialization — CVSS Base Score 6.3 Medium — PVR0815934. Vulnerability Details CVEID:CVE-2026-49844 DESCRIPTION: Improper encoding of non-finite...

org.apache.logging.log4j: Apache Log4j JsonTemplateLayout: Denial of Service via invalid JSON output

A flaw was found in Apache Log4j's JsonTemplateLayout. This vulnerability allows a remote attacker to disrupt log processing systems. By sending log events that include specific non-numeric floating-point values, the attacker can cause the JsonTemplateLayout to generate invalid JSON output. This...

org.apache.logging.log4j/log4j-core: Apache Log4j Core: Invalid XML output causes denial of service in logging

A flaw was found in Apache Log4j Core. The XmlLayout component, responsible for formatting log messages into XML, does not properly remove or replace characters that are not allowed in XML 1.0. When log messages or diagnostic information contain these forbidden characters, the resulting XML outpu...

org.apache.logging.log4j/log4j-core: Apache Log4j Core: Log injection via CRLF sequences due to configuration attribute renames

A flaw was found in Apache Log4j Core. This vulnerability allows for log injection through the use of Carriage Return Line Feed CRLF sequences. This occurs because security-related configuration attributes were silently renamed, impacting users who directly configure Rfc5424Layout with stream-bas...

org.apache.logging.log4j/log4j-core: Apache Log4j Core: Invalid XML output causes denial of service in logging

A flaw was found in Apache Log4j Core. The XmlLayout component, responsible for formatting log messages into XML, does not properly remove or replace characters that are not allowed in XML 1.0. When log messages or diagnostic information contain these forbidden characters, the resulting XML outpu...

org.apache.logging.log4j: Apache Log4j JsonTemplateLayout: Denial of Service via invalid JSON output

A flaw was found in Apache Log4j's JsonTemplateLayout. This vulnerability allows a remote attacker to disrupt log processing systems. By sending log events that include specific non-numeric floating-point values, the attacker can cause the JsonTemplateLayout to generate invalid JSON output. This...

CLEANSTART-2026-JY79008 Improper encoding of non-finite floating-point values during MapMessage JSON serialization in Apache Log4j API produces output that is not valid JSON

Multiple security vulnerabilities affect the apache-hive package. Improper encoding of non-finite floating-point values during MapMessage JSON serialization in Apache Log4j API produces output that is not valid JSON. See references for individual vulnerability details...

Security Bulletin: IBM App Connect Enterprise and IBM Integration Bus for z/OS are vulnerable to Improper Encoding or Escaping of Output due to Apache Log4j (CVE-2026-49844)

Summary IBM App Connect Enterprise and IBM Integration Bus for z/OS are vulnerable to Improper Encoding or Escaping of Output due to Apache Log4j. Vulnerability Details CVEID:CVE-2026-49844 DESCRIPTION: Improper encoding of non-finite floating-point values during MapMessage JSON serialization in...

CLSA-2026-1788442788 TuxCare security update for org.apache.logging.log4j (2 CVEs)

TuxCare rebuilt 32 org.apache.logging.log4j packages to address 2 CVEs. Fixed in 2.17.1-tuxcare.4...

Security Bulletin: IBM Operational Decision Manager for Aug 2026 - Multiple CVEs addressed

Summary In addition to many updates of operating system level packages, the following security vulnerabilities are addressed with IBM Operational Decision Manager Vulnerability Details CVEID:CVE-2026-54515 DESCRIPTION: jackson-databind contains the general-purpose data-binding functionality and...

Security Bulletin: IBM License Key Server Administration and Reporting Tool and IBM LKS Administration Agent are vulnerable to improper encoding in Apache Log4j [CVE-2026-49844]

Summary IBM License Key Server Administration and Reporting Tool and IBM LKS Administration Agent are vulnerable to Improper encoding of non-finite floating-point values during MapMessage JSON serialization in Apache Log4j API, which produces output that is not valid JSON CVE-2026-49844. This...

Security Bulletin: IBM QRadar SIEM contains components with known vulnerabilities

Summary Multiple components with known vulnerabilities were addressed in IBM QRadar SIEM Vulnerability Details CVEID:CVE-2026-34477 DESCRIPTION: The fix for CVE-2025-68161 https://logging.apache.org/security.htmlCVE-2025-68161 was incomplete: it addressed hostname verification only when enabled v...

Security Bulletin: IBM QRadar SIEM contains components with known vulnerabilities

Summary Multiple components with known vulnerabilities were addressed in IBM QRadar SIEM Vulnerability Details CVEID:CVE-2026-49844 DESCRIPTION: Improper encoding of non-finite floating-point values during MapMessage JSON serialization in Apache Log4j API produces output that is not valid JSON...

Amazon Linux 2023 : log4j, log4j-jcl, log4j-slf4j (ALAS2023-2026-2072)

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2026-2072 advisory. 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....

Medium: log4j

Issue Overview: 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 al...