Qt Company Qt XML module/Qt 5 Core Compatibility APIs module QXmlSimpleReader recursion

CVSS Meta Temp Score
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CTI Interest Score
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7.3$0-$5k0.00+

Summaryinfo

A vulnerability labeled as critical has been found in Qt Company Qt. This affects the function QXmlSimpleReader of the component Qt XML module/Qt 5 Core Compatibility APIs module. Such manipulation leads to recursion. This vulnerability is traded as CVE-2026-97845. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in Qt Company Qt (the affected version unknown) and classified as critical. Affected by this issue is the function QXmlSimpleReader of the component Qt XML module/Qt 5 Core Compatibility APIs module. The manipulation with an unknown input leads to a recursion vulnerability. Using CWE to declare the problem leads to CWE-674. The product does not properly control the amount of recursion that takes place, consuming excessive resources, such as allocated memory or the program stack. Impacted is confidentiality, integrity, and availability. CVE summarizes:

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).

The advisory is available at qt.io. This vulnerability is handled as CVE-2026-97845 since 09/25/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1499 by the MITRE ATT&CK project.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

Name

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: 7.3
VulDB Meta Temp Score: 7.3

VulDB Base Score: 7.3
VulDB Temp Score: 7.3
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: Recursion
CWE: CWE-674 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
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: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

09/25/2026 CVE reserved
11/12/2026 +48 days Advisory disclosed
11/12/2026 +0 days VulDB entry created
11/12/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: qt.io
Status: Confirmed

CNA: Qt
CVE: CVE-2026-97845 (🔒)

GCVE (CVE): GCVE-0-2026-97845
GCVE (VulDB): GCVE-100-436334

Entryinfo

Created: 11/12/2026 14:33
Changes: 11/12/2026 14:33 (67)
Complete: 🔍
Cache ID: 216::103

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