CVE-2025-5455
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2025
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
Possible denial of service when passing malformed data in a URL to qDecodeDataUrl
An issue was found in the private API function qDecodeDataUrl() in QtCore, which is used in QTextDocument and QNetworkReply, and, potentially, in user code. If the function was called with malformed data, for example, an URL that contained a "charset" parameter that lacked a value (such as "data:charset,"), and Qt was built with assertions enabled, then it would hit an assertion, resulting in a denial of service (abort). This impacts Qt up to 5.15.18, 6.0.0->6.5.8, 6.6.0->6.8.3 and 6.9.0. This has been fixed in 5.15.19, 6.5.9, 6.8.4 and 6.9.1.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Qt
- Vendor
- Qt
- Product
- Qt
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 0 | affected | python | Unavailable | 5.15.18 | None listed |
| 6.0.0 | affected | python | Unavailable | 6.5.8 | None listed |
| 6.5.9 | unaffected | python | Unavailable | Unavailable | None listed |
| 6.6.0 | affected | python | Unavailable | 6.8.3 | None listed |
| 6.8.4 | unaffected | python | Unavailable | Unavailable | None listed |
| 6.9.0 | affected | python | Unavailable | Unavailable | None listed |
| 6.9.1 | unaffected | python | Unavailable | Unavailable | None listed |