{"action":"Upgrade log4net to 1.2.10+dfsg-8 or later.","affected":[{"fixed":"1.2.10+dfsg-8","introduced":"0"}],"component":"log4net","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["1.2.10+dfsg-8"],"id":"tcs_01M5ND0H3Z1RMKFXQXH264EVSW","modified_at":"2026-10-23T18:03:36.712814200Z","published_at":"2020-05-11T17:15:10.923Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2018-1285","https://security-tracker.debian.org/tracker/CVE-2018-1285"],"severity":{"label":"critical","score":9.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2018-1285#Debian:14/log4net","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2018-1285"}],"summary":"Apache log4net versions before 2.0.10 do not disable XML external entities when parsing log4net configuration files. This allows for XXE-based attacks in applications that accept attacker-controlled l"}