CVE-2026-114366

Information disclosure vulnerability in authentication handling of QWebSocket impacts Qt Framework

2.3 LowFix available

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

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: Passive

What an attacker can affect

Confidentiality: High
Integrity: None
Availability: None

Exploit likelihood

0.39%Unchanged since Nov 6, 2026

What each source reports

CVE List Score used 2.3

Information disclosure vulnerability in authentication handling of QWebSocket impacts Qt Framework

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

Record: CVE-2026-114366
CVSS 4.0: 2.3 LowCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/AU:N/RE:L/U:Green
Weakness: CWE-226
Updated: 2026-11-06

EUVDEUVD-2026-117889 2.3

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

Record: EUVD-2026-117889
CVSS 4.0: 2.3 LowCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/AU:N/RE:L/U:Green
Updated: 2026-11-06

GitHub AdvisoriesGHSA-gx9x-355g-wxcm 2.3

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

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

Record: GHSA-gx9x-355g-wxcm
CVSS 4.0: 2.3 LowCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:N/R:X/V:X/RE:L/U:Green
Weakness: CWE-226
Updated: 2026-11-06

NVD 2.3

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

Record: CVE-2026-114366
CVSS 4.0: 2.3 LowCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:N/R:X/V:X/RE:L/U:Green
Weakness: CWE-226
Updated: 2026-11-07

OSVDEBIAN-CVE-2026-114366 2.3

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

Record: DEBIAN-CVE-2026-114366
CVSS 4.0: 2.3 LowCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:N/R:X/V:X/RE:L/U:Green
Updated: 2026-11-07

OSVUBUNTU-CVE-2026-114366 2.3

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

Record: UBUNTU-CVE-2026-114366
CVSS 4.0: 2.3 LowCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/AU:N/RE:L/U:Green
Updated: 2026-11-07

OSVopenSUSE-SU-2026:12492-1 No score

libQt6WebSockets6-6.12.0-2.1 on GA media

These are all security issues fixed in the libQt6WebSockets6-6.12.0-2.1 package on the GA media of openSUSE Tumbleweed.

Record: openSUSE-SU-2026:12492-1
Updated: 2026-11-09

Affected products

qt framework

Affected packages

Affected packages
Package	Affected	Fixed
`qt6-websockets` Debian:12	All versions, plus listed versions 6.10.2-16.10.2-26.10.2-36.11.2-16.11.2-2 Show 20 moreShow less 6.4.2-16.4.2-26.4.2-36.6.0-16.6.0-26.6.1-16.6.2-16.6.2-26.7.2-16.7.2-26.7.2-36.7.2-46.8.2-16.8.2-26.8.2-36.9.1-16.9.1-26.9.2-16.9.2-26.9.2-3	None known
`qt6-websockets` Debian:13	All versions, plus listed versions 6.10.2-16.10.2-26.10.2-36.11.2-16.11.2-2 Show 6 moreShow less 6.8.2-36.9.1-16.9.1-26.9.2-16.9.2-26.9.2-3	None known
`qt6-websockets` Debian:14	All versions, plus listed versions 6.10.2-16.10.2-26.10.2-36.11.2-16.11.2-2 Show 6 moreShow less 6.8.2-36.9.1-16.9.1-26.9.2-16.9.2-26.9.2-3	None known
`qtwebsockets-opensource-src` Debian:12	All versions, plus listed versions 5.15.10-15.15.10-25.15.12-15.15.13-15.15.13-2 Show 11 moreShow less 5.15.13-2+loong645.15.15-15.15.15-25.15.17-15.15.17-25.15.17-35.15.18-15.15.19-15.15.19-25.15.8-25.15.9-1	None known
`qtwebsockets-opensource-src` Debian:13	All versions, plus listed versions 5.15.15-25.15.17-15.15.17-25.15.17-35.15.18-15.15.19-15.15.19-2	None known
`qtwebsockets-opensource-src` Debian:14	All versions, plus listed versions 5.15.15-25.15.17-15.15.17-25.15.17-35.15.18-15.15.19-15.15.19-2	None known
`qtwebsockets-opensource-src` Ubuntu:16.04:LTS	All versions, plus listed versions 5.4.2-2build15.5.1-4build1	None known
`qtwebsockets-opensource-src` Ubuntu:18.04:LTS	All versions, plus listed versions 5.9.1-35.9.2-3build15.9.3-0ubuntu15.9.4-0ubuntu15.9.5-0ubuntu1	None known
`qtwebsockets-opensource-src` Ubuntu:20.04:LTS	All versions, plus listed versions 5.12.4-15.12.5-25.12.5-2build15.12.8-0ubuntu1	None known
`qt6-websockets` Ubuntu:22.04:LTS	All versions, plus listed versions 6.2.2-36.2.4-1	None known

Show 8 moreShow less

Affected packages
Package	Affected	Fixed
`qtwebsockets-opensource-src` Ubuntu:22.04:LTS	All versions, plus listed versions 5.15.2-25.15.3-1	None known
`qt6-websockets` Ubuntu:24.04:LTS	All versions, plus listed versions 6.4.2-36.4.2-3build16.4.2-3build2	None known
`qtwebsockets-opensource-src` Ubuntu:24.04:LTS	All versions, plus listed versions 5.15.10-25.15.12-15.15.12-1build15.15.12-1build25.15.13-1	None known
`qt6-websockets` Ubuntu:26.10	All versions, plus listed versions 6.10.2-16.10.2-36.11.2-1	None known
`qtwebsockets-opensource-src` Ubuntu:26.10	All versions, plus listed versions 5.15.18-15.15.19-2	None known
`qt6-websockets` Ubuntu:26.04:LTS	All versions, plus listed versions 6.9.2-16.9.2-36.10.2-1	None known
`qtwebsockets-opensource-src` Ubuntu:26.04:LTS	All versions, plus listed versions 5.15.17-25.15.17-35.15.18-1	None known
`qt6-websockets` openSUSE:Tumbleweed	before 6.12.0-2.1	6.12.0-2.1

History

History
Recorded	Changed	Sources
Nov 9, 2026	affected, aliases, facts, references	OSV
Nov 7, 2026	affected, aliases, references	OSV
Nov 7, 2026	affected, aliases, published, references	NVD, OSV
Nov 6, 2026	published	EUVD
Nov 6, 2026	published	EUVD, NVD
Nov 6, 2026	aliases, references	GitHub Advisories
Nov 6, 2026	aliases, published	EUVD
Nov 6, 2026	first indexed	CVE List

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-114366 is a low vulnerability (CVSS 2.3) in Qt Framework, published November 6, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.39%, the 32nd percentile. Fixed in qt6-websockets 6.12.0-2.1.

Attack profile

How easy it is to exploit

What an attacker can affect

Exploit likelihood

What each source reports

Affected products

Affected packages

History

In short

References