{"schema_version":"1.7.2","id":"OESA-2026-3202","modified":"2026-08-01T16:42:37Z","published":"2026-08-01T16:42:37Z","upstream":["CVE-2026-9499"],"summary":"qt6-qt5compat security update","details":".\r\n\r\nSecurity Fix(es):\n\nAn out-of-bounds read (buffer over-read) vulnerability exists in QTextCodec::codecForName() in Qt. When the function is called with a QByteArray that is not NUL-terminated (for example, one created with QByteArray::fromRawData()), the codec-name matching routine reads past the end of the supplied buffer. In most cases this results in an incorrect text codec being selected; in the worst case, if the over-read reaches unmapped memory, the process crashes (denial of service). The over-read is bounded by the length of the longest codec-name candidate, and the out-of-bounds bytes are only compared internally against Qt's fixed list of codec names, so no data is disclosed to an attacker. Applications that do not pass non-NUL-terminated QByteArrays to QTextCodec::codecForName() are not exposed. The affected code resides in the Qt5Compat module from Qt 6.0.0 onward, and in Qt Core (qtbase) in Qt 4.x and Qt 5.x.(CVE-2026-9499)","affected":[{"package":{"ecosystem":"openEuler:24.03-LTS-SP1","name":"qt6-qt5compat","purl":"pkg:rpm/openEuler/qt6-qt5compat&distro=openEuler-24.03-LTS-SP1"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.5.2-2.oe2403sp1"}]}],"ecosystem_specific":{"aarch64":["qt6-qt5compat-6.5.2-2.oe2403sp1.aarch64.rpm","qt6-qt5compat-debuginfo-6.5.2-2.oe2403sp1.aarch64.rpm","qt6-qt5compat-debugsource-6.5.2-2.oe2403sp1.aarch64.rpm","qt6-qt5compat-devel-6.5.2-2.oe2403sp1.aarch64.rpm"],"src":["qt6-qt5compat-6.5.2-2.oe2403sp1.src.rpm"],"x86_64":["qt6-qt5compat-6.5.2-2.oe2403sp1.x86_64.rpm","qt6-qt5compat-debuginfo-6.5.2-2.oe2403sp1.x86_64.rpm","qt6-qt5compat-debugsource-6.5.2-2.oe2403sp1.x86_64.rpm","qt6-qt5compat-devel-6.5.2-2.oe2403sp1.x86_64.rpm"]}}],"references":[{"type":"ADVISORY","url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-3202"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-9499"}],"database_specific":{"severity":"Medium"}}