{"action":"Upgrade apache-log4j1.2 to 1.2.17-11 or later.","affected":[{"fixed":"1.2.17-11","introduced":"0"}],"component":"apache-log4j1.2","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["1.2.17-11"],"id":"tcs_01M5NFZSWMFW7CD3X2T0EJ9VHC","modified_at":"2026-10-23T18:03:34.520979724Z","published_at":"2021-12-14T12:15:12.200Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2021-4104","https://security-tracker.debian.org/tracker/CVE-2021-4104"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2021-4104#Debian:13/apache-log4j1.2","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2021-4104"}],"summary":"JMSAppender in Log4j 1.2 is vulnerable to deserialization of untrusted data when the attacker has write access to the Log4j configuration. The attacker can provide TopicBindingName and TopicConnection"}