[ CVE-2026-107590 · Published 27 Oct 2026 ]
Vulnerability in Qt
CVSS 1.9
EPSS <1%1 agency advisoryNo fix listed yet
[ Description ]Official description
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 internal buffer. This can cause the application to crash and may affect data integrity.
[ Fixes ]Fixes and patches
No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.
[ Advisories ]Government CERT advisories
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BSI CERT-BundWID-SEC-2026-4178
QT: Multiple vulnerabilities Translated from German