CVE-2026-34481
JsonTemplateLayout vulnerability
Apache · Apache Log4j JSON Template Layout: Improper serialization of non-finite floating-point values in JsonTemplateLayout
MSRC advisory April 30, 2026
Alert details
- Source feed
- Microsoft MSRC
- CVE ID
- CVE-2026-34481
- Affected products
- Apache Log4j JSON Template Layout: Improper serialization of non-finite floating-point values in JsonTemplateLayout · Apache Apache Log4j JSON Template Layout: Improper serialization of non-finite floating-point values in JsonTemplateLayout · Apache
What happened
Information published.
What it means for your business
Apache Apache Log4j JSON Template Layout: Improper serialization of non-finite floating-point values in JsonTemplateLayout (CVE-2026-34481) was added to Microsoft’s security update guidance. Information published. PremierePC tracks MSRC advisories for Upstate SC businesses — patch or open a ticket if you need help verifying exposure.
Sources
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