{"id":"DEBIAN-CVE-2026-57053","details":"GNU libidn before 1.44 is prone to out-of-bounds reads of uninitialized memory in the ToUnicode APIs because of mishandling in idna_to_unicode_internal. The affected code is not present in libidn2.","modified":"2026-09-14T17:03:46.698874266Z","published":"2026-06-23T18:18:10.827Z","upstream":["CVE-2026-57053"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-57053"}],"affected":[{"package":{"name":"libidn","ecosystem":"Debian:12","purl":"pkg:deb/debian/libidn?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.41-1","1.42-1","1.42-2","1.42-3","1.43-1","1.43-2","1.43-3","1.44-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-57053.json"}},{"package":{"name":"libidn","ecosystem":"Debian:13","purl":"pkg:deb/debian/libidn?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.43-1","1.43-2","1.43-3","1.44-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-57053.json"}},{"package":{"name":"libidn","ecosystem":"Debian:14","purl":"pkg:deb/debian/libidn?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.44-1"}]}],"versions":["1.43-1","1.43-2","1.43-3"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-57053.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N"}]}