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python: Python: Command-line option injection in webbrowser.open() via crafted URLs

🗓️ 19 May 2026 13:33:20Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 4 Views

Python webbrowser.open vulnerability allows command-line option injection via crafted URLs with leading dashes.

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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux10.2aarch64python3.140:3.14.4-2.el10_2python3.14-0:3.14.4-2.el10_2.aarch64.rpm
Red Hat Enterprise Linux10.2ppc64lepython3.140:3.14.4-2.el10_2python3.14-0:3.14.4-2.el10_2.ppc64le.rpm
Red Hat Enterprise Linux10.2s390xpython3.140:3.14.4-2.el10_2python3.14-0:3.14.4-2.el10_2.s390x.rpm
Red Hat Enterprise Linux10.2x86_64python3.140:3.14.4-2.el10_2python3.14-0:3.14.4-2.el10_2.x86_64.rpm
Red Hat Enterprise Linux10.2aarch64python3.14-debug0:3.14.4-2.el10_2python3.14-debug-0:3.14.4-2.el10_2.aarch64.rpm
Red Hat Enterprise Linux10.2ppc64lepython3.14-debug0:3.14.4-2.el10_2python3.14-debug-0:3.14.4-2.el10_2.ppc64le.rpm
Red Hat Enterprise Linux10.2s390xpython3.14-debug0:3.14.4-2.el10_2python3.14-debug-0:3.14.4-2.el10_2.s390x.rpm
Red Hat Enterprise Linux10.2x86_64python3.14-debug0:3.14.4-2.el10_2python3.14-debug-0:3.14.4-2.el10_2.x86_64.rpm
Red Hat Enterprise Linux10.2aarch64python3.14-debuginfo0:3.14.4-2.el10_2python3.14-debuginfo-0:3.14.4-2.el10_2.aarch64.rpm
Red Hat Enterprise Linux10.2ppc64lepython3.14-debuginfo0:3.14.4-2.el10_2python3.14-debuginfo-0:3.14.4-2.el10_2.ppc64le.rpm
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01 Jun 2026 03:10Current
7High risk
Vulners AI Score7
CVSS 3.13.3
CVSS 47
EPSS0.00015
SSVC
CWE-88
Pythonwebbrowser opencommand lineleading dashesunix
4