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Apache Log4j JSON Template Layout: Improper serialization of non-finite floating-point values in JsonTemplateLayout

🗓️ 10 Apr 2026 18:31:18Reported by GitHub Advisory DatabaseType 
github
 github
🔗 github.com👁 6 Views

Log4j JsonTemplateLayout up to version 2.25.3 emits invalid JSON for non-finite floats; upgrade to 2.25.4.

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13 Apr 2026 23:59Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.17.5
CVSS 46.3
EPSS0.00555
SSVC
6