{"action":"Upgrade expat to 2.8.2-r0 or later.","affected":[{"fixed":"2.8.2-r0","introduced":"0"}],"component":"expat","cve_ids":[],"ecosystem":"Alpine","ecosystem_qualifier":"Alpine:v3.21","exploited":false,"fixed_versions":["2.8.2-r0"],"id":"tcs_01M5NFW6PACA1ZB9YGD2229KX5","modified_at":"2026-10-01T02:17:49.357365677Z","published_at":"2026-06-21T17:16:44.657Z","references":["https://osv.dev/vulnerability/ALPINE-CVE-2026-56412","https://security.alpinelinux.org/vuln/CVE-2026-56412"],"severity":{"label":"medium","score":5.9},"sources":[{"source":"osv","source_id":"ALPINE-CVE-2026-56412","url":"https://osv.dev/vulnerability/ALPINE-CVE-2026-56412"}],"summary":"libexpat before 2.8.2 does not consider XML_TOK_DATA_CHARS in doCdataSection and thus lacks handler call depth tracking for various calls from within handlers in cases of a policy violation. Thus, a u"}