Vulnerability · Published Sep 16, 2026 · Assigned by Qt
CVE-2026-19248Unbounded recursion vulnerability in the QDomNode destructor of Qt XML impacts Qt
High 7.1
In plain English
A high-severity security flaw in qt from qt. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 37% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 4.0)7.1High
Exploit odds (30 days)0.4%top 63.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
QDomDocument XML parsing is vulnerable to a remotely-triggerable denial-of-service crash when processing untrusted input.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | qt5-qtbase | 5.15.3-10.el8_10 | ALSA-2026:93924 |
| AlmaLinux:9 | qt5-qtbase | 5.15.9-11.el9_8.2 | ALSA-2026:87082 |
| AlmaLinux:8 | qt5-qtbase-common | 5.15.3-10.el8_10 | ALSA-2026:93924 |
| AlmaLinux:9 | qt5-qtbase-common | 5.15.9-11.el9_8.2 | ALSA-2026:87082 |
| AlmaLinux:8 | qt5-qtbase-devel | 5.15.3-10.el8_10 | ALSA-2026:93924 |
| AlmaLinux:9 | qt5-qtbase-devel | 5.15.9-11.el9_8.2 | ALSA-2026:87082 |
| AlmaLinux:8 | qt5-qtbase-examples | 5.15.3-10.el8_10 | ALSA-2026:93924 |
| AlmaLinux:9 | qt5-qtbase-examples | 5.15.9-11.el9_8.2 | ALSA-2026:87082 |
| AlmaLinux:8 | qt5-qtbase-gui | 5.15.3-10.el8_10 | ALSA-2026:93924 |
| AlmaLinux:9 | qt5-qtbase-gui | 5.15.9-11.el9_8.2 | ALSA-2026:87082 |
| AlmaLinux:8 | qt5-qtbase-mysql | 5.15.3-10.el8_10 | ALSA-2026:93924 |
| AlmaLinux:9 | qt5-qtbase-mysql | 5.15.9-11.el9_8.2 | ALSA-2026:87082 |
| AlmaLinux:8 | qt5-qtbase-odbc | 5.15.3-10.el8_10 | ALSA-2026:93924 |
| AlmaLinux:9 | qt5-qtbase-odbc | 5.15.9-11.el9_8.2 | ALSA-2026:87082 |
| AlmaLinux:8 | qt5-qtbase-postgresql | 5.15.3-10.el8_10 | ALSA-2026:93924 |
| AlmaLinux:9 | qt5-qtbase-postgresql | 5.15.9-11.el9_8.2 | ALSA-2026:87082 |
| AlmaLinux:8 | qt5-qtbase-private-devel | 5.15.3-10.el8_10 | ALSA-2026:93924 |
| AlmaLinux:9 | qt5-qtbase-private-devel | 5.15.9-11.el9_8.2 | ALSA-2026:87082 |
| AlmaLinux:8 | qt5-qtbase-static | 5.15.3-10.el8_10 | ALSA-2026:93924 |
| AlmaLinux:9 | qt5-qtbase-static | 5.15.9-11.el9_8.2 | ALSA-2026:87082 |
| Debian:12 | qt6-base | no fix listed | DEBIAN-CVE-2026-19248 |
| Debian:13 | qt6-base | no fix listed | DEBIAN-CVE-2026-19248 |
| Debian:14 | qt6-base | 6.11.2+dfsg-5 | DEBIAN-CVE-2026-19248 |
| Debian:12 | qtbase-opensource-src | no fix listed | DEBIAN-CVE-2026-19248 |
| Debian:13 | qtbase-opensource-src | no fix listed | DEBIAN-CVE-2026-19248 |
| Debian:14 | qtbase-opensource-src | 5.15.19+dfsg-5 | DEBIAN-CVE-2026-19248 |
| Rocky Linux:8 | qt5-qtbase | 0:5.15.3-10.el8_10 | RLSA-2026:93924 |
| Rocky Linux:9 | qt5-qtbase | 0:5.15.9-11.el9_8.2 | RLSA-2026:87082 |
| Ubuntu:22.04:LTS | qt6-base | no fix listed | UBUNTU-CVE-2026-19248 |
| Ubuntu:24.04:LTS | qt6-base | no fix listed | UBUNTU-CVE-2026-19248 |
| Ubuntu:26.04:LTS | qt6-base | no fix listed | UBUNTU-CVE-2026-19248 |
| Ubuntu:26.10 | qt6-base | no fix listed | UBUNTU-CVE-2026-19248 |
| Ubuntu:26.04:LTS | qtbase-opensource-src | no fix listed | UBUNTU-CVE-2026-19248 |
| Ubuntu:26.10 | qtbase-opensource-src | no fix listed | UBUNTU-CVE-2026-19248 |
Affected products (as reported)
Weakness: CWE-674 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/AU:N/R:U/V:D/RE:L
References
- dev patch patch