[SECURITY] Fedora 43 Update: log4cxx-1.7.0-2.fc43

Log4cxx is a popular logging package written in C++. One of its distinctive features is the notion of inheritance in loggers. Using a logger hierarchy it is possible to control which log statements are output at arbitrary granularity. This helps reduce the volume of logged output and minimize the...

Fedora 43 : log4cxx (2026-31a8569c4b)

The remote Fedora 43 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-31a8569c4b advisory. Update to log4cxx 1.7.0. Fixes CVE-2026-40023: XMLLayout did not escape characters forbidden by the XML 1.0 specification, which could cause conforming XML...

[SECURITY] Fedora 44 Update: log4cxx-1.7.0-2.fc44

Log4cxx is a popular logging package written in C++. One of its distinctive features is the notion of inheritance in loggers. Using a logger hierarchy it is possible to control which log statements are output at arbitrary granularity. This helps reduce the volume of logged output and minimize the...

Fedora 44 : log4cxx (2026-43767b6007)

The remote Fedora 44 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-43767b6007 advisory. Update to log4cxx 1.7.0. New features: fallback-ref appender attribute, Qt CMake findpackage component, TelnetAppender NonBlocking option. Bug fixes: non-ASC...

Updated log4cxx packages fix security vulnerability

CVE-2026-40023, Apache Log4cxx, Apache Log4cxx Conan, Apache Log4cxx Brew: Silent log event loss in XMLLayout due to unescaped XML 1.0 forbidden characters...

MGASA-2026-0218 Updated log4cxx packages fix security vulnerability

CVE-2026-40023, Apache Log4cxx, Apache Log4cxx Conan, Apache Log4cxx Brew: Silent log event loss in XMLLayout due to unescaped XML 1.0 forbidden characters...

OSV-2026-853 Stack-buffer-overflow in log4cxx::helpers::Transcoder::decode

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=519671967 Crash type: Stack-buffer-overflow READ 1 Crash state: log4cxx::helpers::Transcoder::decode TranscoderFuzzer.cpp CentipedeRunnerMain...

PT-2026-49158

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=519671967 Crash type: Stack-buffer-overflow READ 1 Crash state: log4cxx::helpers::Transcoder::decode TranscoderFuzzer.cpp CentipedeRunnerMain...

openSUSE 16 Security Update : log4cxx (openSUSE-SU-2026:20705-1)

The remote openSUSE 16 host has packages installed that are affected by a vulnerability as referenced in the openSUSE- SU-2026:20705-1 advisory. Changes in log4cxx: - update to 1.7.0 bsc1261994, CVE-2026-40023: Non-ascii characters incorrectly encoded in JSON output 615 XML output could contain...

OPENSUSE-SU-2026:20705-1 Security update for log4cxx

This update for log4cxx fixes the following issues: Changes in log4cxx: - update to 1.7.0 bsc1261994, CVE-2026-40023: Non-ascii characters incorrectly encoded in JSON output 615 XML output could contain characters not allowed by the XML 1.0 specification An XML configuration file with recursive...

liblog4cxx-devel-1.7.0-2.1 on GA media (moderate)

liblog4cxx-devel-1.7.0-2.1 on GA media Announcement ID: openSUSE-SU-2026:10566-1 Rating: moderate Cross-References: CVE-2026-40023 CVSS scores: CVE-2026-40023 SUSE : 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N CVE-2026-40023 SUSE : 6.3...

CVE-2026-40023

A flaw was found in Apache Log4cxx. An attacker who can influence logged data can exploit this by injecting characters forbidden by the XML 1.0 specification a standard for encoding documents into log messages, Network Device Configuration NDC, and Mapped Diagnostic Context MDC property keys and...

Linux Distros Unpatched Vulnerability : CVE-2026-40023

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Apache Log4cxx's XMLLayout https://logging.apache.org/log4cxx/1.7.0/classlog4cxx11xml11XMLLayout.html , in versions before 1.7.0, fails to sanitize characters...

EUVD-2026-21490

Apache Log4cxx's XMLLayout https://logging.apache.org/log4cxx/1.7.0/classlog4cxx11xml11XMLLayout.html , in versions before 1.7.0, fails to sanitize characters forbidden by the XML 1.0 specification https://www.w3.org/TR/xml/charsets in log messages, NDC, and MDC property keys and values, producin...

CVE-2026-40023

Apache Log4cxx's XMLLayout https://logging.apache.org/log4cxx/1.7.0/classlog4cxx11xml11XMLLayout.html , in versions before 1.7.0, fails to sanitize characters forbidden by the XML 1.0 specification https://www.w3.org/TR/xml/charsets in log messages, NDC, and MDC property keys and values, producin...

DEBIAN-CVE-2026-40023

Apache Log4cxx's XMLLayout https://logging.apache.org/log4cxx/1.7.0/classlog4cxx11xml11XMLLayout.html , in versions before 1.7.0, fails to sanitize characters forbidden by the XML 1.0 specification https://www.w3.org/TR/xml/charsets in log messages, NDC, and MDC property keys and values, producin...

CVE-2026-40023

Apache Log4cxx's XMLLayout https://logging.apache.org/log4cxx/1.7.0/classlog4cxx11xml11XMLLayout.html , in versions before 1.7.0, fails to sanitize characters forbidden by the XML 1.0 specification https://www.w3.org/TR/xml/charsets in log messages, NDC, and MDC property keys and values, producin...

UBUNTU-CVE-2026-40023

Apache Log4cxx's XMLLayout https://logging.apache.org/log4cxx/1.7.0/classlog4cxx11xml11XMLLayout.html , in versions before 1.7.0, fails to sanitize characters forbidden by the XML 1.0 specification https://www.w3.org/TR/xml/charsets in log messages, NDC, and MDC property keys and values, producin...

CVE-2026-40023 Apache Log4cxx, Apache Log4cxx (Conan), Apache Log4cxx (Brew): Silent log event loss in XMLLayout due to unescaped XML 1.0 forbidden characters

Apache Log4cxx's XMLLayout https://logging.apache.org/log4cxx/1.7.0/classlog4cxx11xml11XMLLayout.html , in versions before 1.7.0, fails to sanitize characters forbidden by the XML 1.0 specification https://www.w3.org/TR/xml/charsets in log messages, NDC, and MDC property keys and values, producin...

CVE-2026-40023

CVE-2026-40023 concerns Apache Log4cxx XMLLayout (pre-1.7.0) that fails to sanitize XML 1.0 forbidden characters in log messages, NDC, and MDC keys/values, producing invalid XML. Conforming parsers may reject such documents, potentially dropping or failing to index affected records and impairing ...