{"schema_version":1,"title":"Apache Log4j2 vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 3 vulnerabilities in Apache Log4j2: 0 in the last 7 days and 0 in the last 90 days, 2 of them critical and 2 exploited in the wild. The most recent, CVE-2021-45105, was published on 18 December 2021.","url":"https://junglewise.ai/threats/technologies/log4j2","json_url":"https://junglewise.ai/threats/technologies/log4j2.json","publisher":"Junglewise Threat Intelligence","license":"CC-BY-4.0","license_url":"https://creativecommons.org/licenses/by/4.0/","attribution":"Junglewise Threat Intelligence, https://junglewise.ai/threats/technologies/log4j2","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"technology","counts":{"high":1,"all_time":3,"critical":2,"exploited":2,"last_7_days":0,"last_30_days":0,"last_90_days":0,"last_365_days":0},"latest":[{"cve":"CVE-2021-45105","cvss":8.6,"epss":1,"slug":"cve-2021-45105-apache-log4j2-uncontrolled-recursion-in-self-referential-lookups","title":"Apache Log4j2 uncontrolled recursion in self-referential lookups","severity":"high","exploited":false,"published_at":"2021-12-18T18:00:07+00:00","url":"https://junglewise.ai/threats/cve-2021-45105-apache-log4j2-uncontrolled-recursion-in-self-referential-lookups"},{"cve":"CVE-2021-45046","cvss":3.1,"epss":0.9998,"slug":"cve-2021-45046-apache-log4j2-deserialization-of-untrusted-data-vulnerability","title":"Incomplete fix for Apache Log4j vulnerability","severity":"critical","exploited":true,"published_at":"2021-12-14T18:01:28+00:00","url":"https://junglewise.ai/threats/cve-2021-45046-apache-log4j2-deserialization-of-untrusted-data-vulnerability"},{"cve":"CVE-2021-44228","cvss":3.1,"epss":1,"slug":"cve-2021-44228-apache-log4j2-remote-code-execution-vulnerability","title":"Remote code injection in Log4j","severity":"critical","exploited":true,"published_at":"2021-12-10T00:40:56+00:00","url":"https://junglewise.ai/threats/cve-2021-44228-apache-log4j2-remote-code-execution-vulnerability"}],"weekly":[{"week":"2026-06-29","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-06","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-13","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-20","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-27","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-03","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-10","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-17","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-24","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-31","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-07","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-14","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-21","critical":0,"exploited":0,"vulnerabilities":0}],"related":[{"name":"Apache Tomcat","slug":"tomcat","vulnerabilities":78,"url":"https://junglewise.ai/threats/technologies/tomcat"},{"name":"Apache Airflow","slug":"airflow","vulnerabilities":63,"url":"https://junglewise.ai/threats/technologies/airflow"},{"name":"Apache Camel","slug":"camel","vulnerabilities":40,"url":"https://junglewise.ai/threats/technologies/camel"},{"name":"Apache Traffic Server","slug":"traffic-server","vulnerabilities":39,"url":"https://junglewise.ai/threats/technologies/traffic-server"},{"name":"Apache HTTP Server","slug":"http-server","vulnerabilities":32,"url":"https://junglewise.ai/threats/technologies/http-server"},{"name":"Apache CloudStack","slug":"cloudstack","vulnerabilities":25,"url":"https://junglewise.ai/threats/technologies/cloudstack"},{"name":"Apache Ofbiz","slug":"ofbiz","vulnerabilities":22,"url":"https://junglewise.ai/threats/technologies/ofbiz"},{"name":"Apache ActiveMQ","slug":"activemq","vulnerabilities":19,"url":"https://junglewise.ai/threats/technologies/activemq"},{"name":"Apache Storm","slug":"storm","vulnerabilities":17,"url":"https://junglewise.ai/threats/technologies/storm"},{"name":"Apache Apisix","slug":"apisix","vulnerabilities":16,"url":"https://junglewise.ai/threats/technologies/apisix"},{"name":"Apache Thrift","slug":"thrift","vulnerabilities":16,"url":"https://junglewise.ai/threats/technologies/thrift"},{"name":"Apache ActiveMQ Artemis","slug":"activemq-artemis","vulnerabilities":15,"url":"https://junglewise.ai/threats/technologies/activemq-artemis"}],"technology":{"hub":true,"name":"Apache Log4j2","slug":"log4j2","vendor":{"name":"Apache","slug":"apache","url":"https://junglewise.ai/threats/vendors/apache"},"aliases":[],"homepage":"https://logging.apache.org/log4j/2.x/","repo_url":"https://github.com/apache/logging-log4j2","description":"A Java-based logging utility used for generating and managing log files in applications.","url":"https://junglewise.ai/threats/technologies/log4j2"},"most_severe":[{"cve":"CVE-2021-44228","cvss":3.1,"epss":1,"slug":"cve-2021-44228-apache-log4j2-remote-code-execution-vulnerability","title":"Remote code injection in Log4j","severity":"critical","exploited":true,"published_at":"2021-12-10T00:40:56+00:00","url":"https://junglewise.ai/threats/cve-2021-44228-apache-log4j2-remote-code-execution-vulnerability"},{"cve":"CVE-2021-45046","cvss":3.1,"epss":0.9998,"slug":"cve-2021-45046-apache-log4j2-deserialization-of-untrusted-data-vulnerability","title":"Incomplete fix for Apache Log4j vulnerability","severity":"critical","exploited":true,"published_at":"2021-12-14T18:01:28+00:00","url":"https://junglewise.ai/threats/cve-2021-45046-apache-log4j2-deserialization-of-untrusted-data-vulnerability"},{"cve":"CVE-2021-45105","cvss":8.6,"epss":1,"slug":"cve-2021-45105-apache-log4j2-uncontrolled-recursion-in-self-referential-lookups","title":"Apache Log4j2 uncontrolled recursion in self-referential lookups","severity":"high","exploited":false,"published_at":"2021-12-18T18:00:07+00:00","url":"https://junglewise.ai/threats/cve-2021-45105-apache-log4j2-uncontrolled-recursion-in-self-referential-lookups"}],"generated_at":"2026-09-27T03:07:00.185062+00:00"}