Known Vulnerabilities for Log4j by Apache

Listed below are 10 of the newest known vulnerabilities associated with "Log4j" by "Apache".

These CVEs are retrieved based on exact matches on listed software, hardware, and vendor information (CPE data) as well as a keyword search to ensure the newest vulnerabilities with no officially listed software information are still displayed.

Data on known vulnerable versions is also displayed based on information from known CPEs

Known Vulnerabilities

CVE Shortened Description Severity Publish Date Last Modified
CVE-2026-34481 json Apache Log4j's JsonTemplateLayout https://logging.apache.org/log4j/2.x/manual/json-template-layout.html , in versions up to ... Not Provided 2026-04-10 2026-04-10
CVE-2026-34480 json Apache Log4j Core's XmlLayout https://logging.apache.org/log4j/2.x/manual/layouts.html#XmlLayout , in versions up to and inc... Not Provided 2026-04-10 2026-04-10
CVE-2026-34479 json The Log4j1XmlLayout from the Apache Log4j 1-to-Log4j 2 bridge fails to escape characters forbidden by the XML 1.0 standard, p... Not Provided 2026-04-10 2026-04-10
CVE-2026-34478 json Apache Log4j Core's Rfc5424Layout https://logging.apache.org/log4j/2.x/manual/layouts.html#RFC5424Layout , in versions 2.21.... Not Provided 2026-04-10 2026-04-10
CVE-2026-34477 json The fix for CVE-2025-68161 https://logging.apache.org/security.html#CVE-2025-68161 was incomplete: it addressed hostname ve... Not Provided 2026-04-10 2026-04-10
CVE-2023-26464 json ** UNSUPPORTED WHEN ASSIGNED ** When using the Chainsaw or SocketAppender components with Log4j 1.x on JRE less than 1.7, an... 7.5 - HIGH 2023-03-10 2023-05-05
CVE-2022-33915 json Versions of the Amazon AWS Apache Log4j hotpatch package before log4j-cve-2021-44228-hotpatch-1.3.5 are affected by a race co... 7 - HIGH 2022-06-17 2022-07-05
CVE-2022-23307 json CVE-2020-9493 identified a deserialization issue that was present in Apache Chainsaw. Prior to Chainsaw V2.0 Chainsaw was a c... 8.8 - HIGH 2022-01-18 2023-02-24
CVE-2022-23305 json By design, the JDBCAppender in Log4j 1.2.x accepts an SQL statement as a configuration parameter where the values to be inser... 9.8 - CRITICAL 2022-01-18 2023-02-24
CVE-2022-23302 json JMSSink in all versions of Log4j 1.x is vulnerable to deserialization of untrusted data when the attacker has write access to... 8.8 - HIGH 2022-01-18 2023-02-24
Results limited to 10 most recent vulnerabilities

Known Affected Configurations (CPE V2.3)

Type Vendor Product Version Update Edition Language
ApplicationApacheLog4j2.9.1
ApplicationApacheLog4j2.9.0
ApplicationApacheLog4j2.9.0
ApplicationApacheLog4j2.8.2
ApplicationApacheLog4j2.8.2
ApplicationApacheLog4j2.8.1
ApplicationApacheLog4j2.8.1
ApplicationApacheLog4j2.8.1
ApplicationApacheLog4j2.8
ApplicationApacheLog4j2.8
ApplicationApacheLog4j2.8
ApplicationApacheLog4j2.7
ApplicationApacheLog4j2.7
ApplicationApacheLog4j2.7
ApplicationApacheLog4j2.7
ApplicationApacheLog4j2.6.2
ApplicationApacheLog4j2.6.2
ApplicationApacheLog4j2.6.2
ApplicationApacheLog4j2.6.1
ApplicationApacheLog4j2.6.1
Results limited to 20 most recent known configurations
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