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CVE-2026-97845

Uncontrolled recursion vulnerability in QXmlSimpleReader XML parsing impacts Qt

Products / packages qt

Published

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Severity and exploitation

Not in CISA KEV

KEV coverage does not rule out exploitation.

KEV checked 14/11/2026, 21:30:34 UTC
Qt · CVSS:4.0 · 4.3
Assessment vectorCVSS: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

Severity

medium4.3

CVSS measures technical severity, not the likelihood of an attack.

Known exploitation

Not listed in the checked CISA KEV catalog

Absence from CISA KEV does not rule out attacks.

Public exploit

Not established by this record

Missing evidence does not mean no public exploit exists.

Remediation

Fix status not established

No structured fix or guidance is available here. Check the latest publisher advisory.

What this means

Qt 5.0.0 to 6.8.9 and 6.9.0 to 6.11.2 are affected by an uncontrolled recursion vulnerability in QXmlSimpleReader XML parsing. The weakness is CWE-674 Uncontrolled Recursion. Local access is required.

Summarized by @cf/meta/llama-3.3-70b-instruct-fp8-fast. Verify details against the original sources.

Attack conditions

No attack-condition excerpt has been identified here. Review the full source description and references for authentication, network access, and configuration requirements.

Review supporting sources →

Affected versions

Check the exact model, release, and any platform requirements against your installation.

qt · Qt

qt

3 ranges
Qt version evidence

Compare with this publisher’s ranges. This does not inspect your installation.

affected

5.0.0 → before 6.8.10

python versions

6.9.0 → before 6.11.3

python versions

unaffected

unknown

0 → before 5.0.0

python versions

Other versions: unaffected

Product identifiers (CPE)cpe:2.3:a:qt:qt:*:*:*:*:*:*:*:*cpe:2.3:a:qt:qtbase:*:*:*:*:*:*:*:*cpe:2.3:a:qt:qt5compat:*:*:*:*:*:*:*:*
Automatic dependency matching is unavailable for this record. Use the product evidence and publisher’s instructions to check your installation.

What to do

Compare your installed product and version with the affected versions above. A matching product name alone does not confirm exposure.

No structured fix or remediation guidance is available here. Check the full source description and vendor’s latest advisory for a patch or workaround; do not assume another version is safe.

cve.new guidance unless attributed to a publisher. This page does not inspect your installation.

Public exploit evidence

No public exploit reference is identified in the imported evidence. This is not a claim that no exploit exists.

Original source description

Read the full publisher 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).

References

7 sources
www.qt.io/security-advisories
Vendor advisoryQt
codereview.qt-project.org/c/qt/qt5compat/+/771290
PatchQt
codereview.qt-project.org/c/qt/qt5compat/+/774512
PatchQt
codereview.qt-project.org/c/qt/qt5compat/+/774513
PatchQt
codereview.qt-project.org/c/qt/qt5compat/+/774632
PatchQt
codereview.qt-project.org/c/qt/qt5compat/+/760219
PatchQt
View 1 more references
codereview.qt-project.org/c/qt/qt5compat/+/760220
PatchQt

Inside the record

Evidence available

Package identity · not supplied
Version evidence
Remediation guidance · not supplied
Weakness classification
Additional publishers · not supplied

Describes the evidence in this view, not whether the product is safe.

Original records

CVE-2026-97845

View the latest unmodified CVE JSON from the official source. It may be newer than this imported page.

cve.new JSON →

Underlying weaknesses

The source’s classification of what caused the vulnerability.

CWE-674 ↗

CWE-674 Uncontrolled Recursion

Qt

Related →
Contributing organizations · 1
Qt

Assigning organization

2026-11-12

Timeline

All times UTC

  1. Advisory published

    Publication date supplied by the source.

  2. Last imported by cve.new

    Latest catalog import, not the date we first saw this advisory.

What changed

Follow changes
No substantive changes have been recorded here yet. History starts when cve.new observes a change after tracking is enabled; earlier edits are not reconstructed.

Large field values are marked as truncated previews. Original source snapshots remain retained.