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CVE-2026-97845Uncontrolled recursion vulnerability in QXmlSimpleReader XML parsing impacts Qt
- 4.3MediumCVSS base score
- 0.13%Exploitation in 30 daysEPSS · top 97% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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).
Timeline
ID reserved
By Qt
- 48 days later
· 48 days later
Published
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| QtCNA (assigner) | 4.0 | Medium4.3 | 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 |
| NVDNVD · Awaiting Analysis | 4.0 | Medium4.3 | 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 |
- EPSS (exploitation in 30 days)
- 0.13% · top 97% of all CVEs (14 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.3.
Affected products
References
References7
- https://www.qt.io/security-advisories?search=CVE-2026-97845 (opens in a new tab)vendor-advisory
- https://codereview.qt-project.org/c/qt/qt5compat/+/771290 (opens in a new tab)patch
- https://codereview.qt-project.org/c/qt/qt5compat/+/774512 (opens in a new tab)patch
- https://codereview.qt-project.org/c/qt/qt5compat/+/774513 (opens in a new tab)patch
- https://codereview.qt-project.org/c/qt/qt5compat/+/774632 (opens in a new tab)patch
- https://codereview.qt-project.org/c/qt/qt5compat/+/760219 (opens in a new tab)patch
- https://codereview.qt-project.org/c/qt/qt5compat/+/760220 (opens in a new tab)patch
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-124396 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-97845)Record last updated .