{"id":"CVE-2026-107590","title":"Out-of-bounds write vulnerability in QTextCodec iconv-based encoding impacts Qt","summary":"An out-of-bounds write vulnerability in the Qt QTextCodec iconv-based encoding of the Qt 5 Compatibility APIs module (Qt Core in Qt 5 and earlier) impacts Qt. Under certain conditions, encoding text with QTextCodec may write outside an i…","severity":"low","cvss":1.9,"cvssVector":"CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N/E:U/R:U/RE:L/U:Green","cvssSource":"cna","cwe":["CWE-787","CWE-131"],"vendor":"qt","product":"Qt","affected":["Qt >= 4.5.0 <= 6.8.8","Qt >= 6.9.0 <= 6.11.2"],"published":"2026-10-27","updated":"2026-10-27","sourceUpdated":"2026-10-27T12:24:53.005Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-107590","references":[{"url":"https://wiki.qt.io/List_of_known_vulnerabilities_in_Qt_products#CVE-2026-107590:"},{"url":"https://codereview.qt-project.org/c/qt/qt5compat/+/762752"}],"tags":["cve.org"],"ingestedAt":"2026-10-27T16:11:59.324Z","slug":"CVE-2026-107590","body":"## Overview\n\nAn out-of-bounds write vulnerability in the Qt QTextCodec iconv-based encoding of the Qt 5 Compatibility APIs module (Qt Core in Qt 5 and earlier) impacts Qt. Under certain conditions, encoding text with QTextCodec may write outside an internal buffer. This can cause the application to crash and may affect data integrity.\n\n## Affected\n\n- `Qt >= 4.5.0 <= 6.8.8`\n- `Qt >= 6.9.0 <= 6.11.2`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":10,"depthScoreParts":{"impact":10.5,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}