{"action":"Upgrade expat to 2.9.0-1~deb13u1 or later.","affected":[{"fixed":"2.9.0-1~deb13u1","introduced":"0"}],"component":"expat","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["2.9.0-1~deb13u1"],"id":"tcs_01M5NTMZD6VFVA8XTC8JJVXWGS","modified_at":"2026-10-23T17:47:31.770099504Z","published_at":"2026-08-18T15:16:57Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-66046","https://security-tracker.debian.org/tracker/CVE-2026-66046"],"severity":{"label":"unknown"},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-66046#Debian:13/expat","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-66046"}],"summary":"Expat through 2.8.3 contains a denial of service vulnerability caused by quadratic algorithmic complexity in the storeAtts() function in xmlparse.c, where processing N specified attributes with non-no"}