AlmaLinux 9.2 [TuxCare] Security Update: log4j / log4j-jcl / log4j-slf4j / log4j-web (ALMALINUX9.2:CLSA-2026:1780054786)

The AlmaLinux 9.2 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.2:CLSA-2026:1780054786 advisory. - The Log4j1XmlLayout from the Apache Log4j 1-to-Log4j 2 bridge fails to escape characters forbidden by the XML 1.0 standard, producing...

AlmaLinux 9.6 [TuxCare] Security Update: log4j / log4j-jcl / log4j-slf4j / log4j-web (ALMALINUX9.6:CLSA-2026:1779124827)

The AlmaLinux 9.6 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1779124827 advisory. - The Log4j1XmlLayout from the Apache Log4j 1-to-Log4j 2 bridge fails to escape characters forbidden by the XML 1.0 standard, producing...

Rocky Linux 9.6 [TuxCare] Security Update: log4j / log4j-jcl / log4j-slf4j / log4j-web (ALMALINUX9.6:CLSA-2026:1779124827)

The Rocky Linux 9.6 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1779124827 advisory. - The Log4j1XmlLayout from the Apache Log4j 1-to-Log4j 2 bridge fails to escape characters forbidden by the XML 1.0 standard, producing...

Security Bulletin: IBM Watson Discovery for IBM Cloud Pak for Data affected by vulnerability in log4j-core-2.25.2.jar

Summary IBM Watson Discovery for IBM Cloud Pak for Data affected by vulnerability in log4j-core-2.25.2.jar Vulnerability Details CVEID:CVE-2026-34479 DESCRIPTION: The Log4j1XmlLayout from the Apache Log4j 1-to-Log4j 2 bridge fails to escape characters forbidden by the XML 1.0 standard, producing...

Astra Linux – Vulnerability in Apache Log4j2

The Log4j1XmlLayout from the Apache Log4j 1-to-Log4j 2 bridge fails to escape characters prohibited by the XML 1.0 standard, resulting in malformed XML output. Compatible XML parsers are required to reject documents containing such characters with a fatal error, which may cause downstream log...

Security Bulletin: Due to use of log4j-core, IBM webMethods BPM is vulnerable to Improper Encoding or Escaping of Output

Summary IBM webMethods BPM is dependant on log4j-core which is affected by known vulnerability - CVE-2026-34479 Vulnerability Details CVEID:CVE-2026-34479 DESCRIPTION: The Log4j1XmlLayout from the Apache Log4j 1-to-Log4j 2 bridge fails to escape characters forbidden by the XML 1.0 standard,...

Security Bulletin: IBM SPSS Modeler is affected by multiple vulnerabilities in Apache Log4j

Summary IBM SPSS Modeler is affected by multiple vulnerabilities in Apache Log4j. This has been addressed in the remediation section. Vulnerability Details CVEID:CVE-2025-68161 DESCRIPTION: The Socket Appender in Apache Log4j Core versions 2.0-beta9 through 2.25.2 does not perform TLS hostname...

CLSA-2026-1779124827 log4j: Fix of CVE-2026-34479

CVE-2026-34479: fix Log4j1XmlLayout invalid XML 1.0 character escape...

The vulnerability of the Log4j1XmlLayout component in the Apache Log4j Core logging library allows attackers to influence the integrity of the protected information.

The vulnerability of the Log4j1XmlLayout component in the Apache Log4j Core logging library is related to improper encoding or escaping of output data. Exploiting this vulnerability allows an attacker to influence the integrity of the protected information...

Apache Log4j 1 to Log4j 2 bridge: silent log event loss in Log4j1XmlLayout due to unescaped XML 1.0 forbidden characters

The Log4j1XmlLayout from the Apache Log4j 1-to-Log4j 2 bridge fails to escape characters forbidden by the XML 1.0 standard, producing malformed XML output. Conforming XML parsers are required to reject documents containing such characters with a fatal error, which may cause downstream log...

Improper Encoding or Escaping of Output

Overview org.apache.logging.log4j:log4j-core is a logging library for Java. Affected versions of this package are vulnerable to Improper Encoding or Escaping of Output in the Log4j1XmlLayout plugin. An attacker can cause log events to be silently lost or downstream log processing systems to drop ...

DEBIAN-CVE-2026-34479

The Log4j1XmlLayout from the Apache Log4j 1-to-Log4j 2 bridge fails to escape characters forbidden by the XML 1.0 standard, producing malformed XML output. Conforming XML parsers are required to reject documents containing such characters with a fatal error, which may cause downstream log...

CVE-2026-34479

The Log4j1XmlLayout from the Apache Log4j 1-to-Log4j 2 bridge fails to escape characters forbidden by the XML 1.0 standard, producing malformed XML output. Conforming XML parsers are required to reject documents containing such characters with a fatal error, which may cause downstream log...

CVE-2026-34479

The Log4j1XmlLayout from the Apache Log4j 1-to-Log4j 2 bridge fails to escape characters forbidden by the XML 1.0 standard, producing malformed XML output. Conforming XML parsers are required to reject documents containing such characters with a fatal error, which may cause downstream log...

CVE-2026-34479 Apache Log4j 1 to Log4j 2 bridge: Silent log event loss in Log4j1XmlLayout due to unescaped XML 1.0 forbidden characters

The Log4j1XmlLayout from the Apache Log4j 1-to-Log4j 2 bridge fails to escape characters forbidden by the XML 1.0 standard, producing malformed XML output. Conforming XML parsers are required to reject documents containing such characters with a fatal error, which may cause downstream log...

CVE-2026-34479: Improper Encoding or Escaping of Output

The Log4j1XmlLayout from the Apache Log4j 1-to-Log4j 2 bridge fails to escape characters forbidden by the XML 1.0 standard, producing malformed XML output. Conforming XML parsers are required to reject documents containing such characters with a fatal error, which may cause downstream log...

Apache Log4j 安全漏洞

Apache Log4j is an open-source logging tool based on Java, developed by the Apache Foundation in the United States. There is a security vulnerability in Apache Log4j, which stems from Log4j1XmlLayout failing to escape characters prohibited by the XML 1.0 standard, potentially resulting in...