Qt Framework up to 6.5.x/6.8.9/6.11.2/6.12.0 Qt WebSockets information disclosure

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
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CTI Interest Score
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4.1$0-$5k2.61

Summaryinfo

A vulnerability described as problematic has been identified in Qt Framework up to 6.5.x/6.8.9/6.11.2/6.12.0. Affected is an unknown function of the component Qt WebSockets Module. Executing a manipulation can lead to information disclosure. This vulnerability is handled as CVE-2026-114366. The attack can be executed remotely. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability has been found in Qt Framework up to 6.5.x/6.8.9/6.11.2/6.12.0 and classified as problematic. This vulnerability affects an unknown code block of the component Qt WebSockets Module. The manipulation with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality. CVE summarizes:

An information disclosure vulnerability in the Qt Framework QWebSocket authentication handling of the Qt WebSockets module.

The advisory is shared for download at wiki.qt.io. This vulnerability was named CVE-2026-114366 since 10/21/2026. The exploitation appears to be easy. The attack can be initiated remotely. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1592.

Upgrading to version 6.6.0, 6.8.10, 6.11.3 or 6.12.1 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Framework 6.6.0/6.8.10/6.11.3/6.12.1

Timelineinfo

10/21/2026 CVE reserved
11/06/2026 +16 days Advisory disclosed
11/06/2026 +0 days VulDB entry created
11/06/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: wiki.qt.io
Status: Confirmed

CNA: Qt
CVE: CVE-2026-114366 (🔒)

GCVE (CVE): GCVE-0-2026-114366
GCVE (VulDB): GCVE-100-431716

Entryinfo

Created: 11/06/2026 06:06
Changes: 11/06/2026 06:06 (70)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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