{"id":"JLSEC-2025-63","summary":"An issue was discovered in libexpat before 2.6.3","details":"An issue was discovered in libexpat before 2.6.3. dtdCopy in xmlparse.c can have an integer overflow for nDefaultAtts on 32-bit platforms (where UINT_MAX equals SIZE_MAX).","modified":"2026-05-01T18:00:14.882849Z","published":"2025-10-14T15:35:41.198Z","upstream":["CVE-2024-45491"],"database_specific":{"sources":[{"database_specific":{"status":"Modified"},"html_url":"https://nvd.nist.gov/vuln/detail/CVE-2024-45491","modified":"2025-11-04T17:16:15.260Z","url":"https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2024-45491","id":"CVE-2024-45491","published":"2024-08-30T03:15:03.850Z","imported":"2026-04-30T20:01:46.295Z"}],"license":"CC-BY-4.0"},"references":[{"type":"WEB","url":"https://github.com/libexpat/libexpat/issues/888"},{"type":"WEB","url":"https://github.com/libexpat/libexpat/pull/891"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2024/09/msg00036.html"},{"type":"WEB","url":"https://security.netapp.com/advisory/ntap-20241018-0003/"}],"affected":[{"package":{"name":"Expat_jll","ecosystem":"Julia","purl":"pkg:julia/Expat_jll?uuid=2e619515-83b5-522b-bb60-26c02a35a201"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2.6.4+0"}]}],"database_specific":{"source":"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2025/JLSEC-2025-63.json"}}],"schema_version":"1.7.5"}