{"id":"CVE-2026-107479","aliases":["DEBIAN-CVE-2026-107479","EUVD-2026-116890","GHSA-q929-xhmp-hf8w","UBUNTU-CVE-2026-107479"],"status":"published","title":"Integer truncation vulnerability in QTextCodec conversion functions impacts Qt Framework","description":"An integer truncation vulnerability in the QTextCodec conversion functions of the Qt 5 Core Compatibility APIs module impacts the Qt Framework. An application using the affected functionality could crash.","severity":{"version":"4.0","score":1.7,"vector":"CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/RE:L/U:Green","level":"low","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00163,"percentile":0.05555,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-197"],"published":"2026-11-04T12:10:28Z","modified":"2026-11-10T10:00:07Z","affected":[{"source":"osv","ecosystem":"Debian:12","package":"qt6-5compat","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["6.10.2-1","6.10.2-2","6.10.2-3","6.10.2-4","6.11.2-1","6.11.2-2","6.11.2-3","6.11.2-4","6.4.2-1","6.4.2-2","6.4.2-3","6.4.2-4","6.6.1-1","6.6.1-2","6.6.2-1","6.6.2-2","6.7.2-1","6.7.2-2","6.7.2-3","6.8.2-1","6.8.2-2","6.8.2-3","6.9.1-1","6.9.1-2","6.9.2-1","6.9.2-2","6.9.2-3"]},{"source":"osv","ecosystem":"Debian:13","package":"qt6-5compat","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["6.10.2-1","6.10.2-2","6.10.2-3","6.10.2-4","6.11.2-1","6.11.2-2","6.11.2-3","6.11.2-4","6.8.2-3","6.9.1-1","6.9.1-2","6.9.2-1","6.9.2-2","6.9.2-3"]},{"source":"osv","ecosystem":"Debian:14","package":"qt6-5compat","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["6.10.2-1","6.10.2-2","6.10.2-3","6.10.2-4","6.11.2-1","6.11.2-2","6.11.2-3","6.11.2-4","6.8.2-3","6.9.1-1","6.9.1-2","6.9.2-1","6.9.2-2","6.9.2-3"]},{"source":"osv","ecosystem":"Debian:12","package":"qtbase-opensource-src","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.15.10+dfsg-1","5.15.10+dfsg-2","5.15.10+dfsg-3","5.15.10+dfsg-4","5.15.10+dfsg-5","5.15.10+dfsg-6","5.15.10+dfsg-7","5.15.10+dfsg-7.1","5.15.10+dfsg-7.2","5.15.11+dfsg-1","5.15.12+dfsg-1","5.15.12+dfsg-2","5.15.12+dfsg-3","5.15.13+dfsg-1","5.15.13+dfsg-2","5.15.13+dfsg-3","5.15.13+dfsg-4","5.15.14+dfsg-1","5.15.15+dfsg-1","5.15.15+dfsg-2","5.15.15+dfsg-3","5.15.15+dfsg-4","5.15.15+dfsg-5","5.15.15+dfsg-6","5.15.16+dfsg-1","5.15.16+dfsg-2","5.15.17+dfsg-1","5.15.17+dfsg-2","5.15.17+dfsg-3","5.15.17+dfsg-4","5.15.17+dfsg-5","5.15.17+dfsg-6","5.15.17+dfsg-7","5.15.17+dfsg-8","5.15.18+dfsg-1","5.15.18+dfsg-2","5.15.19+dfsg-1","5.15.19+dfsg-2","5.15.19+dfsg-3","5.15.19+dfsg-4","5.15.19+dfsg-5","5.15.19+dfsg-6","5.15.19+dfsg-7","5.15.8+dfsg-11","5.15.8+dfsg-11+deb12u1","5.15.8+dfsg-11+deb12u2","5.15.8+dfsg-11+deb12u3","5.15.8+dfsg-12","5.15.8+dfsg-13","5.15.9+dfsg-1","5.15.9+dfsg-2","5.15.9+dfsg-3"]},{"source":"osv","ecosystem":"Debian:13","package":"qtbase-opensource-src","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.15.15+dfsg-6","5.15.15+dfsg-6+deb13u1","5.15.16+dfsg-1","5.15.16+dfsg-2","5.15.17+dfsg-1","5.15.17+dfsg-2","5.15.17+dfsg-3","5.15.17+dfsg-4","5.15.17+dfsg-5","5.15.17+dfsg-6","5.15.17+dfsg-7","5.15.17+dfsg-8","5.15.18+dfsg-1","5.15.18+dfsg-2","5.15.19+dfsg-1","5.15.19+dfsg-2","5.15.19+dfsg-3","5.15.19+dfsg-4","5.15.19+dfsg-5","5.15.19+dfsg-6","5.15.19+dfsg-7"]},{"source":"osv","ecosystem":"Debian:14","package":"qtbase-opensource-src","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.15.15+dfsg-6","5.15.16+dfsg-1","5.15.16+dfsg-2","5.15.17+dfsg-1","5.15.17+dfsg-2","5.15.17+dfsg-3","5.15.17+dfsg-4","5.15.17+dfsg-5","5.15.17+dfsg-6","5.15.17+dfsg-7","5.15.17+dfsg-8","5.15.18+dfsg-1","5.15.18+dfsg-2","5.15.19+dfsg-1","5.15.19+dfsg-2","5.15.19+dfsg-3","5.15.19+dfsg-4","5.15.19+dfsg-5","5.15.19+dfsg-6","5.15.19+dfsg-7"]},{"source":"osv","ecosystem":"Ubuntu:Pro:16.04:LTS","package":"qtbase-opensource-src","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.4.2+dfsg-2ubuntu9","5.5.1+dfsg-6ubuntu4","5.5.1+dfsg-10ubuntu2","5.5.1+dfsg-13ubuntu1","5.5.1+dfsg-13ubuntu2","5.5.1+dfsg-13ubuntu3","5.5.1+dfsg-14ubuntu1","5.5.1+dfsg-14ubuntu2","5.5.1+dfsg-14ubuntu3","5.5.1+dfsg-15ubuntu1","5.5.1+dfsg-16ubuntu1","5.5.1+dfsg-16ubuntu6","5.5.1+dfsg-16ubuntu7","5.5.1+dfsg-16ubuntu7.1","5.5.1+dfsg-16ubuntu7.2","5.5.1+dfsg-16ubuntu7.5","5.5.1+dfsg-16ubuntu7.6","5.5.1+dfsg-16ubuntu7.7","5.5.1+dfsg-16ubuntu7.7+esm1","5.5.1+dfsg-16ubuntu7.7+esm2"]},{"source":"osv","ecosystem":"Ubuntu:Pro:18.04:LTS","package":"qtbase-opensource-src","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.9.1+dfsg-10ubuntu1","5.9.1+dfsg-10ubuntu2","5.9.2+dfsg-4ubuntu6","5.9.3+dfsg-0ubuntu1","5.9.3+dfsg-0ubuntu3","5.9.3+dfsg-0ubuntu4","5.9.4+dfsg-0ubuntu3","5.9.4+dfsg-0ubuntu4","5.9.5+dfsg-0ubuntu1","5.9.5+dfsg-0ubuntu2","5.9.5+dfsg-0ubuntu2.1","5.9.5+dfsg-0ubuntu2.3","5.9.5+dfsg-0ubuntu2.4","5.9.5+dfsg-0ubuntu2.5","5.9.5+dfsg-0ubuntu2.6","5.9.5+dfsg-0ubuntu2.6+esm1","5.9.5+dfsg-0ubuntu2.6+esm2"]},{"source":"osv","ecosystem":"Ubuntu:Pro:20.04:LTS","package":"qtbase-opensource-src","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.12.4+dfsg-4ubuntu1","5.12.5+dfsg-2","5.12.5+dfsg-8","5.12.5+dfsg-8build1","5.12.5+dfsg-9build1","5.12.8+dfsg-0ubuntu1","5.12.8+dfsg-0ubuntu2.1","5.12.8+dfsg-0ubuntu2.1+esm1","5.12.8+dfsg-0ubuntu2.1+esm2","5.12.8+dfsg-0ubuntu2.1+esm3","5.12.8+dfsg-0ubuntu2.1+esm4"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"qt6-5compat","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["6.2.2-5","6.2.4-1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:22.04:LTS","package":"qtbase-opensource-src","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.15.2+dfsg-12","5.15.2+dfsg-13","5.15.2+dfsg-14","5.15.2+dfsg-14ubuntu1","5.15.2+dfsg-14ubuntu3","5.15.2+dfsg-15","5.15.3+dfsg-1","5.15.3+dfsg-2","5.15.3+dfsg-2ubuntu0.1","5.15.3+dfsg-2ubuntu0.2","5.15.3+dfsg-2ubuntu0.2+esm1","5.15.3+dfsg-2ubuntu0.2+esm2","5.15.3+dfsg-2ubuntu0.2+esm3"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"qt6-5compat","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["6.4.2-3","6.4.2-4","6.4.2-4build1","6.4.2-4build2","6.4.2-4build3"]},{"source":"osv","ecosystem":"Ubuntu:Pro:24.04:LTS","package":"qtbase-opensource-src","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.15.10+dfsg-3","5.15.10+dfsg-5","5.15.10+dfsg-5ubuntu1","5.15.12+dfsg-1ubuntu1","5.15.12+dfsg-3ubuntu1","5.15.12+dfsg-3ubuntu6","5.15.12+dfsg-3ubuntu7","5.15.13+dfsg-1ubuntu1","5.15.13+dfsg-1ubuntu1+esm1"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"qt6-5compat","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["6.10.2-1","6.10.2-3","6.10.2-4","6.11.2-1"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"qtbase-opensource-src","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.15.18+dfsg-1ubuntu1","5.15.19+dfsg-2ubuntu1","5.15.19+dfsg-2ubuntu2"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"qt6-5compat","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["6.9.2-1","6.9.2-3","6.9.2-3build1","6.10.2-1"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"qtbase-opensource-src","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.15.17+dfsg-1ubuntu1","5.15.17+dfsg-1ubuntu2","5.15.18+dfsg-1ubuntu1"]}],"products":[{"vendor":"qt","product":"qt"},{"vendor":"the qt company","product":"qt"}],"references":[{"url":"https://wiki.qt.io/List_of_known_vulnerabilities_in_Qt_products#CVE-2026-107479:","tags":["vendor-advisory","report"]},{"url":"https://codereview.qt-project.org/c/qt/qt5compat/+/763226","tags":["patch","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-107479"},{"url":"https://github.com/advisories/GHSA-q929-xhmp-hf8w"},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-107479","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-107479","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-107479","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-107479","title":"Integer truncation vulnerability in QTextCodec conversion functions impacts Qt Framework","description":"An integer truncation vulnerability in the QTextCodec conversion functions of the Qt 5 Core Compatibility APIs module impacts the Qt Framework. An application using the affected functionality could crash.","status":"published","published":"2026-11-04T12:10:28.423Z","modified":"2026-11-09T21:13:33.488Z","cvss":[{"version":"4.0","score":1.7,"vector":"CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/RE:L/U:Green","level":"low","assessor":"cna"}],"cwes":["CWE-197"],"updated_at":"2026-11-09T22:35:08.46461Z"}],"euvd":[{"id":"EUVD-2026-116890","description":"An integer truncation vulnerability in the QTextCodec conversion functions of the Qt 5 Core Compatibility APIs module impacts the Qt Framework. An application using the affected functionality could crash.","status":"published","published":"2026-11-04T12:10:28Z","modified":"2026-11-09T21:13:33Z","cvss":[{"version":"4.0","score":1.7,"vector":"CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/RE:L/U:Green","level":"low"}],"updated_at":"2026-11-09T22:18:21.405141Z"}],"ghsa":[{"id":"GHSA-q929-xhmp-hf8w","title":"An integer truncation vulnerability in the QTextCodec conversion functions of the Qt 5 Core...","description":"An integer truncation vulnerability in the QTextCodec conversion functions of the Qt 5 Core Compatibility APIs module impacts the Qt Framework. An application using the affected functionality could crash.","status":"published","published":"2026-11-04T15:32:29Z","modified":"2026-11-04T15:32:34Z","cvss":[{"version":"4.0","score":1.7,"vector":"CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:L/U:Green","level":"low"}],"cwes":["CWE-197"],"updated_at":"2026-11-04T15:52:09.418756Z"}],"nvd":[{"id":"CVE-2026-107479","description":"An integer truncation vulnerability in the QTextCodec conversion functions of the Qt 5 Core Compatibility APIs module impacts the Qt Framework. An application using the affected functionality could crash.","status":"published","published":"2026-11-04T13:17:21.54Z","modified":"2026-11-09T22:18:22.453Z","cvss":[{"version":"4.0","score":1.7,"vector":"CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:L/U:Green","level":"low","assessor":"secondary"}],"cwes":["CWE-197"],"updated_at":"2026-11-07T00:02:36.119898Z"}],"osv":[{"id":"DEBIAN-CVE-2026-107479","description":"An integer truncation vulnerability in the QTextCodec conversion functions of the Qt 5 Core Compatibility APIs module impacts the Qt Framework. An application using the affected functionality could crash.","status":"published","published":"2026-11-04T13:17:21.54Z","modified":"2026-11-10T10:00:07.515782078Z","cvss":[{"version":"4.0","score":1.7,"vector":"CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:L/U:Green","level":"low"}],"updated_at":"2026-11-10T10:26:30.347596Z"},{"id":"UBUNTU-CVE-2026-107479","description":"An integer truncation vulnerability in the QTextCodec conversion functions of the Qt 5 Core Compatibility APIs module impacts the Qt Framework. An application using the affected functionality could crash.","status":"published","published":"2026-11-05T00:00:00Z","modified":"2026-11-06T01:00:18.501260177Z","cvss":[{"version":"4.0","score":1.7,"vector":"CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/RE:L/U:Green","level":"low"}],"updated_at":"2026-11-06T01:33:11.614208Z"}]}}
