CVE-2026-4519 Affecting python3.10 package, versions <3.10.12-1~22.04.16


Severity

Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.31% (23rd percentile)

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  • Snyk IDSNYK-UBUNTU2204-PYTHON310-15804613
  • published6 Jul 2026
  • disclosed20 Mar 2026

Introduced: 20 Mar 2026

CVE-2026-4519  (opens in a new tab)

How to fix?

Upgrade Ubuntu:22.04 python3.10 to version 3.10.12-1~22.04.16 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python3.10 package and not the python3.10 package as distributed by Ubuntu. See How to fix? for Ubuntu:22.04 relevant fixed versions and status.

The webbrowser.open() API would accept leading dashes in the URL which could be handled as command line options for certain web browsers. New behavior rejects leading dashes. Users are recommended to sanitize URLs prior to passing to webbrowser.open().

CVSS Base Scores

version 3.1