High7.1Red Hat Linux

High [CVE-2026-4519] Command-line option injection in webbrowser.open() via crafted URLs

This high-severity Red Hat Linux advisory covers CVE-2026-4519 affecting Red Hat Enterprise Linux 10.0 Extended Update Support, Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION, Red Hat Enterprise Linux 7 Extended Lifecycle Support.

CVE-2026-4519 Published Mar 20, 2026

CVE-2026-4519

Affected products & platforms

Red Hat LinuxUnclassified

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Summary

Command-line option injection in webbrowser.open() via crafted URLs. Red Hat rates this important (CVSS 7.1).

Weakness: CWE-88. Affected package(s): python3.11, rhpam, discovery/discovery-server-rhel9:1775668717, python3.9, python3.12, rhaiis/vllm-cuda-rhel9:1778274666.

Resolved in Red Hat advisory RHSA-2026:10140 — update the affected packages (`sudo dnf update`).

Affected products named by the advisory: Red Hat Enterprise Linux 10.0 Extended Update Support; Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION; Red Hat Enterprise Linux 7 Extended Lifecycle Support; Red Hat Enterprise Linux 8.2 Advanced Update Support; and 18 more.

Affected versions

python3.11-0:3.11.11-2.el9_6.6
rhpam-7/rhpam-kieserver-rhel8:7.13.5-4.1777325709
discovery/discovery-server-rhel9:1775668717
python3.11-0:3.11.2-2.el8_8.9
python3.9-0:3.9.10-4.el9_0.10
python3.12-0:3.12.1-4.el9_4.12
rhpam-7/rhpam-smartrouter-rhel8:7.13.5-4.1777325708
rhaiis/vllm-cuda-rhel9:1778274666
rhelai3/bootc-aws-cuda-rhel9:1776871984
python3-11-main-3.11.15-2.hum1
python3.12-0:3.12.12-4.el8_10
rhui5/haproxy-rhel9:1776868744

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Fixed versions

RHSA-2026:10140

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Mitigation checklist

Recommended fix / mitigation

Update the affected package(s) to the fixed version shipped in RHSA-2026:10140 (`sudo dnf update` / `yum update`).

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

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