CVE-2026-97845 json
Uncontrolled recursion vulnerability in QXmlSimpleReader XML parsing impacts Qt
published 2d ago modified 2d ago also EUVD-2026-124396
- cvss
- 4.3
- version 4.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.1%
- EPSS 0.1% chance of exploitation in 30 days, percentile 2%
- public exploits
- 0
- none known
Summary
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).
Patch / fix
- qt qt 6.8.10, 6.11.3
- codereview.qt-project.org/c/qt/qt5compat/+/771290 patch
- codereview.qt-project.org/c/qt/qt5compat/+/774512 patch
- codereview.qt-project.org/c/qt/qt5compat/+/774513 patch
- codereview.qt-project.org/c/qt/qt5compat/+/774632 patch
- codereview.qt-project.org/c/qt/qt5compat/+/760219 patch
- codereview.qt-project.org/c/qt/qt5compat/+/760220 patch
Is CVE-2026-97845 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerExploit prediction
0.13% chance of exploitation in the next 30 days, higher than 2% of all scored CVEs (FIRST EPSS, 2026-11-14).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 4.3 | CVSS: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 |
| CNA | 4.0 | 4.3 | CVSS: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 |
Affected products
- qt qt
Classification
- Weakness
-
- CWE-674 Uncontrolled Recursion
References
-
codereview.qt-project.org
/c/qt/qt5compat/+/771290
patch
-
codereview.qt-project.org
/c/qt/qt5compat/+/774512
patch
-
codereview.qt-project.org
/c/qt/qt5compat/+/774513
patch
-
codereview.qt-project.org
/c/qt/qt5compat/+/774632
patch
-
codereview.qt-project.org
/c/qt/qt5compat/+/760219
patch
-
codereview.qt-project.org
/c/qt/qt5compat/+/760220
patch
-
qt.io
/security-advisories?search=CVE-2026-97845
vendor-advisory
Sources
- CVE List CVE-2026-97845
- NVD CVE-2026-97845
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.