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Apache Log4j API: Improper serialization of non-finite floating-point values in MapMessage.asJson()

🗓️ 22 Sep 2026 00:00:00Reported by Broadcom Security ResponseType 
broadcom
 broadcom🔗 support.broadcom.com👁 24 Views

Improper encoding of non-finite floats in Apache Log4j API MapMessage.asJson() produces invalid JSON.

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22 Sep 2026 20:32Current
6.2Medium risk
Vulners AI Score6.2
CVSS 46.3
EPSS0.00854
Apache Log4j APIMapMessage.asJson()improper encodinginvalid JSONnon-finite floating-pointJsonTemplateLayout
24