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34 vulnerabilities found for Qt by Qt
CVE-2026-107590 (GCVE-0-2026-107590)
Vulnerability from cvelistv5
Published
2026-10-27 12:24
Modified
2026-10-27 12:24
Severity ?
VLAI Severity ?
EPSS score ?
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 internal buffer. This can cause the application to crash and may affect data integrity.
References
Impacted products
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CVE-2026-107472 (GCVE-0-2026-107472)
Vulnerability from cvelistv5
Published
2026-10-27 07:32
Modified
2026-10-27 07:32
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-125 - Out-of-bounds Read
Summary
An out-of-bounds read vulnerability in the QTextCodec TSCII encoding of the Qt 5 Compatibility APIs module (Qt Core in Qt 5 and earlier) impacts Qt. Applications that convert text to the TSCII encoding through QTextCodec may read memory outside the input buffer, which can cause the application to crash or misinterpret the data.
References
Impacted products
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CVE-2026-105946 (GCVE-0-2026-105946)
Vulnerability from cvelistv5
Published
2026-10-27 06:45
Modified
2026-10-27 06:45
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-125 - Out-of-bounds Read
Summary
Out-of-bounds read in the QAuthenticator NTLM authentication handling in the Qt Network module in Qt Group Qt allows remote attackers to obtain sensitive information (heap memory contents) or cause a denial of service (application crash) via a crafted NTLM challenge sent by a malicious server or proxy, when an application using QNetworkAccessManager or QTcpSocket authenticates with NTLM.
References
Impacted products
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CVE-2026-107157 (GCVE-0-2026-107157)
Vulnerability from cvelistv5
Published
2026-10-26 12:52
Modified
2026-10-27 07:52
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-125 - Out-of-bounds Read
Summary
Specially crafted CBOR input passed to QCborValue::fromCbor() in Qt Core can cause an out-of-bounds read, which may crash the application and could expose information.
References
Impacted products
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CVE-2026-96432 (GCVE-0-2026-96432)
Vulnerability from cvelistv5
Published
2026-10-26 11:31
Modified
2026-10-26 14:35
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-476 - NULL Pointer Dereference
Summary
A malicious or compromised HTTP/2 server withholding SETTINGS ACK can send RST_STREAM on a completed stream, planting a null pointer, and then send a PUSH_PROMISE for that stream, causing a null pointer dereference in the QNetworkAccessManager class of the Qt Network module that crashes the application.
References
Impacted products
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CVE-2026-95620 (GCVE-0-2026-95620)
Vulnerability from cvelistv5
Published
2026-10-23 10:56
Modified
2026-10-23 10:56
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-416 - Use After Free
Summary
A use-after-free vulnerability in the Qt QNetworkAccessManager HTTP/2 client support of the Qt Network module allows a malicious or compromised HTTP/2 server to cause the client application to crash, affecting availability.
References
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CVE-2026-16762 (GCVE-0-2026-16762)
Vulnerability from cvelistv5
Published
2026-10-23 08:58
Modified
2026-10-23 10:56
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-407 - Inefficient Algorithmic Complexity
Summary
An attacker able to supply a crafted XML document to an application using QXmlStreamReader can cause disproportionate CPU consumption during parsing, making the application unresponsive (denial of service). Exploitation requires only that the application parse attacker-influenced XML; no authentication, privileges, or user interaction beyond ingesting the input are needed. There is no loss of confidentiality or integrity — no data disclosure, data modification, or code execution — and the impact is contained to the affected process.
References
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CVE-2026-105923 (GCVE-0-2026-105923)
Vulnerability from cvelistv5
Published
2026-10-21 09:21
Modified
2026-10-21 09:21
Severity ?
VLAI Severity ?
EPSS score ?
Summary
A malicious SVG can trigger an integer overflow which in turn triggers a null-pointer dereference in VectorImage QML Type.
References
| URL | Tags | |
|---|---|---|
Impacted products
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CVE-2026-101201 (GCVE-0-2026-101201)
Vulnerability from cvelistv5
Published
2026-10-20 08:20
Modified
2026-10-20 15:56
Severity ?
VLAI Severity ?
EPSS score ?
Summary
A malformed header in the binary file fed to QBinaryJson::fromBinaryData() can cause undefined behaviour because of out-of-bounds read.
References
Impacted products
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CVE-2026-8168 (GCVE-0-2026-8168)
Vulnerability from cvelistv5
Published
2026-10-19 13:08
Modified
2026-10-19 14:27
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-674 - Uncontrolled Recursion
Summary
Uncontrolled recursion in the SVG parser and renderer of the Qt SVG module (QtSvg) in Qt Group Qt allows attackers to cause a denial of service (application crash via stack exhaustion) via a crafted SVG file with deeply nested elements.
References
Impacted products
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CVE-2026-79680 (GCVE-0-2026-79680)
Vulnerability from cvelistv5
Published
2026-09-24 10:56
Modified
2026-09-24 12:18
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-288 - Authentication Bypass Using an Alternate Path or Channel
Summary
Authentication bypass vulnerability in the password authentication mechanism of the Qt VNC Server module. An attacker using a specially modified VNC client that violates the RFB protocol can bypass Qt VNC Server's password authentication and gain unauthorized remote access to the shared application, compromising the confidentiality and integrity of the session.
References
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CVE-2026-78253 (GCVE-0-2026-78253)
Vulnerability from cvelistv5
Published
2026-09-23 11:39
Modified
2026-09-23 14:36
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-674 - Uncontrolled Recursion
Summary
Uncontrolled recursion in QXmlStreamReader::readElementText() in Qt Group Qt allows attackers to cause a denial of service (application crash via stack exhaustion) via a crafted XML document.
References
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CVE-2026-79616 (GCVE-0-2026-79616)
Vulnerability from cvelistv5
Published
2026-09-23 09:51
Modified
2026-09-23 14:24
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-125 - Out-of-bounds Read
Summary
Out-of-bounds read while parsing untrusted SVG path strings in Qt Quick's Context2D.path / PathSvg.path.
References
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CVE-2026-76151 (GCVE-0-2026-76151)
Vulnerability from cvelistv5
Published
2026-09-16 09:58
Modified
2026-09-16 13:19
Severity ?
VLAI Severity ?
EPSS score ?
Summary
Out-of-bounds read (buffer over-read) in the HTTP Cache-Control response header parsing in the QtNetwork module in Qt Group Qt 6.0.0 through 6.8.8, and 6.9.0 through 6.11.1, allows remote attackers to cause a denial of service (application crash) via an excessively large Cache-Control header value returned by an untrusted or compromised HTTP server to an application using QNetworkAccessManager. Only the client side of the connection is affected and 32-bit builds are not affected; the out-of-bounds access is read-only, with no information disclosure and no code execution.
References
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CVE-2026-19248 (GCVE-0-2026-19248)
Vulnerability from cvelistv5
Published
2026-09-16 06:37
Modified
2026-09-16 15:02
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-674 - Uncontrolled Recursion
Summary
QDomDocument XML parsing is vulnerable to a remotely-triggerable denial-of-service crash when processing untrusted input.
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CVE-2026-13326 (GCVE-0-2026-13326)
Vulnerability from cvelistv5
Published
2026-09-11 06:11
Modified
2026-09-11 12:08
Severity ?
VLAI Severity ?
EPSS score ?
Summary
An out-of-bounds read in Qt NFC's language code length parsing allows a physically proximate attacker to cause a denial of service or limited memory disclosure via a crafted NFC tag.
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CVE-2026-11573 (GCVE-0-2026-11573)
Vulnerability from cvelistv5
Published
2026-09-08 12:06
Modified
2026-09-11 09:31
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-674 - Uncontrolled Recursion
Summary
Uncontrolled recursion (CWE-674) in the QDomDocument/QDomNode serialization path of the Qt XML module (QtXml, qtbase). QDomElementPrivate::save() and QDomNodePrivate::save() recurse mutually, consuming one stack frame per level of element nesting with no depth limit, no configurable bound and no error return. A document with deeply nested elements parses successfully but exhausts the call stack and terminates the process when serialized. Reachable via QDomDocument::toByteArray() (Qt 4.0 and later), QDomDocument::toString(), QDomDocument::toCString(), QDomNode::save(), and operator<<(QTextStream&, const QDomNode&). Denial of service only — no code execution and no memory disclosure.
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CVE-2026-15037 (GCVE-0-2026-15037)
Vulnerability from cvelistv5
Published
2026-07-23 12:33
Modified
2026-07-23 14:45
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-91 - XML injection (aka blind XPath injection)
Summary
Improper output neutralization (XML injection) in QDom comment, CDATA, and processing-instruction serialization in Qt XML from 4.0.0 through 6.11 allows untrusted text serialized by an application into those nodes to inject arbitrary XML markup, because the node terminators are not escaped under the default InvalidDataPolicy (AcceptInvalidChars). Fixed in Qt 6.12.
References
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CVE-2026-9499 (GCVE-0-2026-9499)
Vulnerability from cvelistv5
Published
2026-07-21 13:25
Modified
2026-07-22 18:28
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-125 - Out-of-bounds Read
Summary
An 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.
References
Impacted products
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CVE-2025-14575 (GCVE-0-2025-14575)
Vulnerability from cvelistv5
Published
2026-05-19 13:01
Modified
2026-07-29 08:58
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-427 - Uncontrolled Search Path Element
Summary
An Uncontrolled Search Path Element vulnerability in the OpenSSL TLS backend of Qt Network (qtbase) in Qt Qt Framework (Unix) allows a local attacker to load a rogue CA certificate as a trusted system authority via a crafted certificate file placed in the application's working directory.
References
| URL | Tags | |
|---|---|---|
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CVE-2026-6210 (GCVE-0-2026-6210)
Vulnerability from cvelistv5
Published
2026-05-06 11:59
Modified
2026-07-29 08:59
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
A type confusion vulnerability in Qt SVG allows an attacker to cause an application crash via a crafted SVG image.
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followed by an endless recursion that bypasses the marker recursion
guard through incorrect virtual dispatch. The result is an application
crash (denial of service).
This issue affects Qt SVG:
from 6.7.0 before 6.8.8, from 6.9.0 before 6.11.1.
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CVE-2025-14576 (GCVE-0-2025-14576)
Vulnerability from cvelistv5
Published
2026-04-30 12:39
Modified
2026-07-29 08:59
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
Insufficient validation of node IDs in Qt SVG module allows arbitrary QML/JavaScript code injection when loading malicious SVG files through the VectorImage component in Qt Quick. While QML execution is typically more restricted than native code execution, this could still lead to denial of service, information disclosure, or other impacts depending on the application's privilege level and data access.
References
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CVE-2025-12385 (GCVE-0-2025-12385)
Vulnerability from cvelistv5
Published
2025-12-03 19:38
Modified
2026-07-29 08:58
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
Allocation of Resources Without Limits or Throttling, Improper Validation of Specified Quantity in Input vulnerability in The Qt Company Qt on Windows, MacOS, Linux, iOS, Android, x86, ARM, 64 bit, 32 bit allows Excessive Allocation.
This issue affects users of the Text component in Qt Quick. Missing validation of the width and height in the <img> tag could cause an application to become unresponsive.
This issue affects Qt: from 5.0.0 through 6.5.10, from 6.6.0 through 6.8.5, from 6.9.0 through 6.10.0.
References
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CVE-2025-23050 (GCVE-0-2025-23050)
Vulnerability from cvelistv5
Published
2025-10-31 00:00
Modified
2025-10-31 16:47
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-125 - Out-of-bounds Read
Summary
QLowEnergyController in Qt before 6.8.2 mishandles malformed Bluetooth ATT commands, leading to an out-of-bounds read (or division by zero). This is fixed in 5.15.19, 6.5.9, and 6.8.2.
References
Impacted products
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CVE-2025-6338 (GCVE-0-2025-6338)
Vulnerability from cvelistv5
Published
2025-10-16 09:22
Modified
2026-07-29 08:54
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-459 - Incomplete Cleanup
Summary
There is an incomplete cleanup vulnerability in Qt Network's Schannel support on Windows which can lead to a Denial of Service over a long period.
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References
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CVE-2025-10729 (GCVE-0-2025-10729)
Vulnerability from cvelistv5
Published
2025-10-03 14:39
Modified
2026-07-29 08:57
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-416 - Use After Free
Summary
The module will parse a <pattern> node which is not a child of a structural node. The node will be deleted after creation but might be accessed later leading to a use after free.
References
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CVE-2025-10728 (GCVE-0-2025-10728)
Vulnerability from cvelistv5
Published
2025-10-03 14:35
Modified
2026-07-29 08:57
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-674 - Uncontrolled Recursion
Summary
When the module renders a Svg file that contains a <pattern> element, it might end up rendering it recursively leading to stack overflow DoS
References
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CVE-2025-5992 (GCVE-0-2025-5992)
Vulnerability from cvelistv5
Published
2025-07-11 06:45
Modified
2026-07-29 08:53
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-20 - Improper Input Validation
Summary
When passing values outside of the expected range to QColorTransferGenericFunction it can cause a denial of service, for example, this can happen when passing a specifically crafted ICC profile to QColorSpace::fromICCProfile.
This issue affects Qt from 6.6.0 through 6.8.3, from 6.9.0 through 6.9.1. This is fixed in 6.8.4 and 6.9.2.
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CVE-2025-5991 (GCVE-0-2025-5991)
Vulnerability from cvelistv5
Published
2025-06-11 07:33
Modified
2026-07-29 08:33
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-416 - Use After Free
Summary
There is a "Use After Free" vulnerability in Qt's QHttp2ProtocolHandler in the QtNetwork module. This only affects HTTP/2 handling, HTTP handling is not affected by this at all. This happens due to a race condition between how QHttp2Stream uploads the body of a
POST request and the simultaneous handling of HTTP error responses.
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CVE-2025-5683 (GCVE-0-2025-5683)
Vulnerability from cvelistv5
Published
2025-06-05 05:31
Modified
2026-07-29 07:35
Severity ?
VLAI Severity ?
EPSS score ?
Summary
When loading a specifically crafted ICNS format image file in QImage then it will trigger a crash.
This issue affects Qt from versions 6.3.0 through 6.5.9, from 6.6.0 through 6.8.4, 6.9.0. This is fixed in 6.5.10, 6.8.5 and 6.9.1.
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