{"id":"DEBIAN-CVE-2026-103963","details":"A flaw was found in glib-networking. When establishing connections using Transport Layer Security (TLS) version 1.3, the client-side session cache does not limit the number of session tickets retained for a single host. A malicious server can exploit this by sending excessive session ticket messages, causing the client application to continuously consume memory. This unbounded memory growth can exhaust system memory, resulting in a Denial of Service (DoS).","modified":"2026-11-04T09:47:32.134282162Z","published":"2026-10-30T05:16:57.237Z","upstream":["CVE-2026-103963"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-103963"}],"affected":[{"package":{"name":"glib-networking","ecosystem":"Debian:12","purl":"pkg:deb/debian/glib-networking?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.74.0-4","2.76.0-1","2.76.1-1","2.76.1-2","2.76~beta-1","2.78.0-1","2.80.0-1","2.80.1-1","2.80~alpha-1","2.80~alpha-2","2.80~rc-1","2.90.0-1","2.90.0-2"],"ecosystem_specific":{"urgency":"unimportant"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-103963.json"}},{"package":{"name":"glib-networking","ecosystem":"Debian:13","purl":"pkg:deb/debian/glib-networking?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.80.1-1","2.90.0-1","2.90.0-2"],"ecosystem_specific":{"urgency":"unimportant"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-103963.json"}},{"package":{"name":"glib-networking","ecosystem":"Debian:14","purl":"pkg:deb/debian/glib-networking?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.80.1-1","2.90.0-1","2.90.0-2"],"ecosystem_specific":{"urgency":"unimportant"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-103963.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}