CVE-2026-78253
Denial-of-service (stack-exhaustion) vulnerability in QXmlStreamReader::readElementText() impacts Qt
LOW
2.3
CVSS Score
Published: September 23, 2026 at 11:39 AM UTC
Updated: September 24, 2026 at 09:27 PM UTC
1 product affected across 1 vendorQt
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Severity
LOW2.3
Exploit prediction
EPSS 0.4%
SSVC
No known exploit
Description
Uncontrolled recursion in QXmlStreamReader::readElementText() in Qt Group Qt allows attackers to cause a denial of service (application crash via stack exhaustion) via a crafted XML document.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (1)
Patch
Source: a59d8014-47c4-4630-ab43-e1b13cbe58e3
https://codereview.qt-project.org/c/qt/qtbase/+/754345SSVC — Action Prioritization
SSVCNo known exploitNot automatablePartial impact
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
2.3LOWQt
Vector?
Quick Info
StatusAWAITING ANALYSIS
CWE
CWE-674
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