{"action":"Upgrade org.apache.logging.log4j:log4j-layout-template-json to 2.25.4 or later.","affected":[{"fixed":"2.25.4","introduced":"2.14.0"},{"introduced":"3.0.0-alpha1","last_affected":"3.0.0-beta3"}],"component":"org.apache.logging.log4j:log4j-layout-template-json","cve_ids":["CVE-2026-34481"],"ecosystem":"Maven","epss":0.00691,"exploited":false,"fixed_versions":["2.25.4"],"ghsa_id":"GHSA-w35j-pv5h-q9q9","id":"tcs_01M5N9F7J0SBK3FGEHSXGNT0FV","modified_at":"2026-09-10T03:51:03.622660398Z","published_at":"2026-04-10T18:31:18Z","references":["https://osv.dev/vulnerability/GHSA-w35j-pv5h-q9q9","https://nvd.nist.gov/vuln/detail/CVE-2026-34481","https://github.com/apache/logging-log4j2/pull/4080","https://github.com/apache/logging-log4j2","https://lists.apache.org/thread/n34zdv00gbkdbzt2rx9rf5mqz6lhopcv","https://logging.apache.org/cyclonedx/vdr.xml","https://logging.apache.org/log4j/2.x/manual/json-template-layout.html","https://logging.apache.org/security.html#CVE-2026-34481","http://www.openwall.com/lists/oss-security/2026/04/10/10"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"GHSA-w35j-pv5h-q9q9","url":"https://osv.dev/vulnerability/GHSA-w35j-pv5h-q9q9"},{"source":"nvd","source_id":"CVE-2026-34481","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-34481"}],"summary":"Apache Log4j JSON Template Layout: Improper serialization of non-finite floating-point values in JsonTemplateLayout"}