{"id":"DEBIAN-CVE-2026-31814","details":"Yamux is a stream multiplexer over reliable, ordered connections such as TCP/IP. From 0.13.0 to before 0.13.9, a specially crafted WindowUpdate can cause arithmetic overflow in send-window accounting, which triggers a panic in the connection state machine. This is remotely reachable over a normal network connection and does not require authentication. This vulnerability is fixed in 0.13.9.","modified":"2026-10-01T03:03:10.426202302Z","published":"2026-03-13T19:54:36.470Z","upstream":["CVE-2026-31814"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-31814"}],"affected":[{"package":{"name":"rust-yamux","ecosystem":"Debian:13","purl":"pkg:deb/debian/rust-yamux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.13.10+ds-1","0.13.10+ds-2","0.13.3-4","0.13.7-1","0.13.8-1","0.13.9+ds-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-31814.json"}},{"package":{"name":"rust-yamux","ecosystem":"Debian:14","purl":"pkg:deb/debian/rust-yamux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.13.9+ds-1"}]}],"versions":["0.13.3-4","0.13.7-1","0.13.8-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-31814.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:N/A:H"}]}