CVE-2026-34480: Apache Log4j Core: Silent log event loss in XmlLayout due to unescaped XML 1.0 forbidden characters

Overview

Severity
N/A
Exploit Status
Not Exploited
Patch Tuesday
2026-Apr
Released
2026-04-15
EPSS Score
0.12% (percentile: 30.8%)

Affected Products (1)

Open Source Software

  • azl3 javapackages-bootstrap 1.14.0-4 on Azure Linux 3.0

Revision History

  • 2026-04-15: Information published.