{"id":"DEBIAN-CVE-2026-12549","details":"The fix for CVE-2026-2443 was regressed by a subsequent rework commit that replaced specific overflow checks with a general signed comparison. When a client sends a Range request with a suffix length exceeding the content size, the resulting negative start value is not properly clamped, leading to malformed HTTP 206 responses and log flooding.","modified":"2026-09-14T17:01:47.860331688Z","published":"2026-06-22T16:16:34.090Z","upstream":["CVE-2026-12549"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-12549"}],"affected":[{"package":{"name":"libsoup3","ecosystem":"Debian:14","purl":"pkg:deb/debian/libsoup3?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.6.5-3","3.6.5-4","3.6.5-5","3.6.5-6","3.6.5-7","3.6.5-8","3.6.5-9","3.6.6-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-12549.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L"}]}