CVE-2026-97845

Uncontrolled recursion vulnerability in QXmlSimpleReader XML parsing impacts Qt

4.3 Medium

CVE-2026-97845 is a medium vulnerability (CVSS 4.3) in Qt, published November 12, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.13%, the 2nd percentile. No source names a fixed version.

What does this mean?

Severity: 4.3 MediumCVSS 4.0, CVE List
Exploit chance: 0.13%EPSS, 2nd percentile
Exploitation: None knownNot on CISA’s or ENISA’s lists
Fixed in: No fix listedNo source names one

Description

An uncontrolled recursion vulnerability has been discovered in the Qt QXmlSimpleReader XML parsing functionality of the Qt 5 Core Compatibility APIs module (Qt 6) and the Qt XML module (Qt 5).

Attack profile

How easy it is to exploit

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

What an attacker can affect

Confidentiality: None
Integrity: None
Availability: High

Exploit likelihood

0.13%Unchanged since Nov 13, 2026

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`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 used4.3

Uncontrolled recursion vulnerability in QXmlSimpleReader XML parsing impacts Qt

An uncontrolled recursion vulnerability has been discovered in the Qt QXmlSimpleReader XML parsing functionality of the Qt 5 Core Compatibility APIs module (Qt 6) and the Qt XML module (Qt 5).

Record: CVE-2026-97845
CVSS 4.0: 4.3 MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/R:U/U:Green
Weakness: CWE-674
Updated: 2026-11-12

EUVDEUVD-2026-1243964.3

An uncontrolled recursion vulnerability has been discovered in the Qt QXmlSimpleReader XML parsing functionality of the Qt 5 Core Compatibility APIs module (Qt 6) and the Qt XML module (Qt 5).

Record: EUVD-2026-124396
CVSS 4.0: 4.3 MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/R:U/U:Green
Updated: 2026-11-12

GitHub AdvisoriesGHSA-qm3v-vpq6-gc2v4.3

An uncontrolled recursion vulnerability has been discovered in the Qt QXmlSimpleReader XML...

An uncontrolled recursion vulnerability has been discovered in the Qt QXmlSimpleReader XML parsing functionality of the Qt 5 Core Compatibility APIs module (Qt 6) and the Qt XML module (Qt 5).

Record: GHSA-qm3v-vpq6-gc2v
CVSS 4.0: 4.3 MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/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:U/V:X/RE:X/U:Green
Weakness: CWE-674
Updated: 2026-11-12

NVD4.3

An uncontrolled recursion vulnerability has been discovered in the Qt QXmlSimpleReader XML parsing functionality of the Qt 5 Core Compatibility APIs module (Qt 6) and the Qt XML module (Qt 5).

Record: CVE-2026-97845
CVSS 4.0: 4.3 MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/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:U/V:X/RE:X/U:Green
Weakness: CWE-674
Updated: 2026-11-12

OSVUBUNTU-CVE-2026-978454.3

An uncontrolled recursion vulnerability has been discovered in the Qt QXmlSimpleReader XML parsing functionality of the Qt 5 Core Compatibility APIs module (Qt 6) and the Qt XML module (Qt 5).

Record: UBUNTU-CVE-2026-97845
CVSS 4.0: 4.3 MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/R:U/U:Green
Updated: 2026-11-13

History

History
Recorded	Changed	Sources
Nov 13, 2026	affected, aliases, references	OSV
Nov 12, 2026	published	EUVD
Nov 12, 2026	published	EUVD
Nov 12, 2026	aliases, references	GitHub Advisories, NVD
Nov 12, 2026	cwes, products, references, severity, title	CVE List
Nov 12, 2026	first indexed	EUVD

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

References

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