CVE-2026-107590
Low
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.
SeverityLow
CVSS1.9
Exploit probability—
ProductQt
PublishedOct 27, 2026
First seenOct 27, 2026
Weakness typeCWE-787Out-of-bounds writeCWE-131CWE-131
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| qt qt | 4.5.0 ≤ v ≤ 6.8.8, 6.9.0 ≤ v ≤ 6.11.2 | — |
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