{"id":"JLSEC-2026-1223","details":"In libexpat before 2.8.1, the computational complexity of attribute name collision checks allows a denial of service via moderately sized crafted XML input.","modified":"2026-08-09T01:30:04.487752891Z","published":"2026-08-09T01:27:54.135Z","upstream":["CVE-2026-45186"],"database_specific":{"sources":[{"database_specific":{"status":"Modified"},"id":"CVE-2026-45186","imported":"2026-08-09T01:17:11.791Z","modified":"2026-07-24T20:10:00.147Z","published":"2026-05-10T07:16:07.883Z","url":"https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-45186","html_url":"https://nvd.nist.gov/vuln/detail/CVE-2026-45186"}],"license":"CC-BY-4.0"},"references":[{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2026/05/11/16"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:22715"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:22721"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:23230"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:26319"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:27201"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:29197"},{"type":"WEB","url":"https://access.redhat.com/security/cve/CVE-2026-45186"},{"type":"WEB","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2468575"},{"type":"WEB","url":"https://cert-portal.siemens.com/productcert/html/ssa-082556.html"},{"type":"WEB","url":"https://github.com/libexpat/libexpat/pull/1216"},{"type":"WEB","url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-45186.json"}],"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":"2.8.1+0"}]}],"database_specific":{"source":"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-1223.json"}}],"schema_version":"1.8.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","source":"NVD"}]}