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CVE-2026-114369

Security Issue CVE-2026-114369 - Resource exhaustion (denial of service) vulnerability in the WebSocket handshake handling of QWebSocket and QWebSocketServer impacts Qt Framework

2.7 Low

CVE-2026-114369 is a low vulnerability (CVSS 2.7) in Qt Framework, published November 12, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.30%, the 23rd percentile. No source names a fixed version.

What does this mean?
Severity
2.7 LowCVSS 4.0, CVE List
Exploit chance
0.30%EPSS, 23rd percentile
Exploitation
None knownNot on CISA’s or ENISA’s lists
Fixed in
No fix listedNo source names one

Description

Resource exhaustion vulnerability in the Qt Framework QWebSocket and QWebSocketServer classes of the Qt WebSockets module

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
Low

Exploit likelihood

0.30%Unchanged since Nov 13, 2026
90%50%10%1%

Affected products

Affected packages

Affected packages
PackageAffectedFixed
qtstyleplugins-src
Ubuntu:16.04:LTS
All versions, plus listed versions
5.0.0-1build15.0.0-1build3
None known
qtstyleplugins-src
Ubuntu:18.04:LTS
All versions, plus listed versions
5.0.0+git23.g335dbec-2build15.0.0+git23.g335dbec-2build25.0.0+git23.g335dbec-2build35.0.0+git23.g335dbec-2build45.0.0+git23.g335dbec-2build5
None known
qtstyleplugins-src
Ubuntu:20.04:LTS
All versions, plus listed versions
5.0.0+git23.g335dbec-3ubuntu15.0.0+git23.g335dbec-3ubuntu25.0.0+git23.g335dbec-3ubuntu35.0.0+git23.g335dbec-3ubuntu4
None known
qtstyleplugins-src
Ubuntu:22.04:LTS
All versions, plus listed versions
5.0.0+git23.g335dbec-4build15.0.0+git23.g335dbec-4build25.0.0+git23.g335dbec-4build3
None known
qtstyleplugins-src
Ubuntu:24.04:LTS
All versions, plus listed versions
5.0.0+git23.g335dbec-65.0.0+git23.g335dbec-6build15.0.0+git23.g335dbec-6build35.0.0+git23.g335dbec-6build45.0.0+git23.g335dbec-6build5
None known

What each source reports

CVE List Score used2.7

Security Issue CVE-2026-114369 - Resource exhaustion (denial of service) vulnerability in the WebSocket handshake handling of QWebSocket and QWebSocketServer impacts Qt Framework

Resource exhaustion vulnerability in the Qt Framework QWebSocket and QWebSocketServer classes of the Qt WebSockets module

Record
CVE-2026-114369
CVSS 4.0
2.7 LowCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/R:A/RE:L/U:Clear
Weakness
CWE-407
Updated
2026-11-12
EUVDEUVD-2026-1243462.7

Resource exhaustion vulnerability in the Qt Framework QWebSocket and QWebSocketServer classes of the Qt WebSockets module

Record
EUVD-2026-124346
CVSS 4.0
2.7 LowCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/R:A/RE:L/U:Clear
Updated
2026-11-12
GitHub AdvisoriesGHSA-r58v-83rv-j7472.7

Resource exhaustion vulnerability in the Qt Framework QWebSocket and QWebSocketServer classes of...

Resource exhaustion vulnerability in the Qt Framework QWebSocket and QWebSocketServer classes of the Qt WebSockets module

Record
GHSA-r58v-83rv-j747
CVSS 4.0
2.7 LowCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/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:X/R:A/V:X/RE:L/U:Clear
Weakness
CWE-407
Updated
2026-11-12
NVD2.7

Resource exhaustion vulnerability in the Qt Framework QWebSocket and QWebSocketServer classes of the Qt WebSockets module

Record
CVE-2026-114369
CVSS 4.0
2.7 LowCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/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:X/R:A/V:X/RE:L/U:Clear
Weakness
CWE-407
Updated
2026-11-12
OSVUBUNTU-CVE-2026-1143692.7

Resource exhaustion vulnerability in the Qt Framework QWebSocket and QWebSocketServer classes of the Qt WebSockets module

Record
UBUNTU-CVE-2026-114369
CVSS 4.0
2.7 LowCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/R:A/RE:L/U:Clear
Updated
2026-11-13

History

History
RecordedChangedSources
affected, aliases, referencesOSV
publishedEUVD
publishedEUVD, NVD
references, severity, titleCVE List
aliases, cwes, references, severity, titleGitHub Advisories
first indexedEUVD

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

References

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