{"id":"DEBIAN-CVE-2026-33633","details":"Kitty is a cross-platform GPU based terminal. Versions 0.46.2 and below contain a heap buffer overflow in load_image_data() that allows any process which can write to the terminal's stdin to crash kitty immediately. The vulnerability is triggered by a single APC graphics protocol command with a PNG format declaration (f=100) whose payload exceeds twice the initial buffer capacity. The overflow is attacker-controlled in both length and content, causing DoS and potentially escalation to RCE itself. This issue has been fixed in version 0.47.0.","modified":"2026-09-14T17:03:08.424705272Z","published":"2026-05-19T18:16:21.343Z","upstream":["CVE-2026-33633"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-33633"}],"affected":[{"package":{"name":"kitty","ecosystem":"Debian:12","purl":"pkg:deb/debian/kitty?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.26.5-5","0.30.1-1","0.31.0-1","0.31.0-2","0.31.0-3","0.31.0-4","0.32.0-1","0.32.1-1","0.32.2-1","0.33.0-2","0.33.1-1","0.34.1-1","0.35.1-1","0.35.2-1","0.36.1-1","0.36.4-1","0.36.4-2","0.36.4-3","0.37.0-1","0.38.1-1","0.39.0-1","0.39.1-1","0.40.0-1","0.41.1-1","0.41.1-2","0.42.1-1","0.42.2-1","0.43.1-1","0.44.0-1","0.45.0-1","0.45.0-2","0.46.1-1","0.46.2-1","0.47.0-1","0.47.0-2","0.47.0-3","0.47.3-1","0.47.4-1","0.48.2-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-33633.json"}},{"package":{"name":"kitty","ecosystem":"Debian:13","purl":"pkg:deb/debian/kitty?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.41.1-2+deb13u1"}]}],"versions":["0.41.1-2"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-33633.json"}},{"package":{"name":"kitty","ecosystem":"Debian:14","purl":"pkg:deb/debian/kitty?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.47.0-1"}]}],"versions":["0.41.1-2","0.42.1-1","0.42.2-1","0.43.1-1","0.44.0-1","0.45.0-1","0.45.0-2","0.46.1-1","0.46.2-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-33633.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"}]}