What is CVE-2026-34479?

CVE-2026-34479 is a security advisory published by Microsoft Security Response Center (MSRC) with Low severity. Apache Log4j 1 to Log4j 2 bridge: Silent log event loss in Log4j1XmlLayout due to unescaped XML 1.0 forbidden characters

Which CVE IDs does CVE-2026-34479 cover?

CVE-2026-34479 covers the following CVE IDs: CVE-2026-34479. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

CVE-2026-34479Low

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

Vendor

Microsoft Security Response Center (MSRC)

Published

June 2, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2026-34479 →