{"id":"DEBIAN-CVE-2026-2708","details":"A request smuggling vulnerability exists in libsoup's HTTP/1 header parsing logic. The soup_message_headers_append_common() function in libsoup/soup-message-headers.c unconditionally appends each header value without validating for duplicate or conflicting Content-Length fields. This allows an attacker to send HTTP requests containing multiple Content-Length headers with differing values.","modified":"2026-09-14T17:03:24.211039481Z","published":"2026-04-23T22:16:29.233Z","upstream":["CVE-2026-2708"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-2708"}],"affected":[{"package":{"name":"libsoup2.4","ecosystem":"Debian:12","purl":"pkg:deb/debian/libsoup2.4?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.74.3-1","2.74.3-1+deb12u1","2.74.3-10","2.74.3-10.1","2.74.3-11","2.74.3-2","2.74.3-3","2.74.3-3.1~exp1","2.74.3-3.1~exp2","2.74.3-3.1~exp3","2.74.3-5","2.74.3-6","2.74.3-7","2.74.3-8","2.74.3-8.1","2.74.3-9"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-2708.json"}},{"package":{"name":"libsoup2.4","ecosystem":"Debian:13","purl":"pkg:deb/debian/libsoup2.4?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.74.3-10.1","2.74.3-11"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-2708.json"}},{"package":{"name":"libsoup3","ecosystem":"Debian:12","purl":"pkg:deb/debian/libsoup3?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.2.2-2","3.2.3-0+deb12u1","3.2.3-0+deb12u2","3.3.1-1","3.4.0-1","3.4.1-1","3.4.2-1","3.4.2-2","3.4.2-3","3.4.2-4","3.4.3-1","3.4.4-1","3.4.4-2","3.4.4-3","3.4.4-4","3.4.4-5","3.5.2-1","3.6.0-1","3.6.0-2","3.6.0-3","3.6.0-4","3.6.1-1","3.6.4-1","3.6.4-2","3.6.4-3","3.6.5-1","3.6.5-2","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-2026-2708.json"}},{"package":{"name":"libsoup3","ecosystem":"Debian:13","purl":"pkg:deb/debian/libsoup3?arch=source&distro=trixie"},"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-2026-2708.json"}},{"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-2026-2708.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N"}]}