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synced 2026-08-08 00:20:38 -09:00
For change log, see:
https://logging.apache.org/log4cxx/1.7.0/changelog.html
This fixes the following vulnerability:
- CVE-2026-40023:
Apache Log4cxx's XMLLayout
https://logging.apache.org/log4cxx/1.7.0/classlog4cxx_1_1xml_1_1XMLLayout.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, producing
invalid XML output. Conforming XML parsers must reject such
documents with a fatal error, which may cause downstream log
processing systems to drop or fail to index affected records.
An attacker who can influence logged data can exploit this
to suppress individual log records, impairing audit trails and
detection of malicious activity. Users are advised to upgrade to
Apache Log4cxx 1.7.0, which fixes this issue.
https://www.cve.org/CVERecord?id=CVE-2026-40023
Signed-off-by: Titouan Christophe <titouan.christophe@mind.be>
[Julien: add link to change log in commit log]
Signed-off-by: Julien Olivain <ju.o@free.fr>
(cherry picked from commit 1d5c6d18da)
Signed-off-by: Thomas Perale <thomas.perale@mind.be>