{"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:v3.23","exploited":false,"fixed_versions":["2.8.2-r0"],"id":"tcs_01M5NFVXN5QZHYKB61PR2A3GVE","modified_at":"2026-10-01T02:17:49.354040368Z","published_at":"2026-06-19T06:17:10.253Z","references":["https://osv.dev/vulnerability/ALPINE-CVE-2026-56132","https://security.alpinelinux.org/vuln/CVE-2026-56132"],"severity":{"label":"medium","score":6.9},"sources":[{"source":"osv","source_id":"ALPINE-CVE-2026-56132#Alpine:v3.23/expat","url":"https://osv.dev/vulnerability/ALPINE-CVE-2026-56132"}],"summary":"In libexpat before 2.8.2, there is a heap-based buffer overflow in doProlog in xmlparse.c because scaffold backing array reallocation is mishandled when there is data-structure sharing across parsers."}