CVE-2026-4519

Public on 2026-03-20
Modified on 2026-03-24
Description
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().
Severity
Important severity
Important
See what this means
CVSS v3 Base Score
7.1
See breakdown

Affected Packages

Platform Package Release Date Advisory Status
Amazon Linux 2 - Core python Pending Fix
Amazon Linux 2 - Core python3 Pending Fix
Amazon Linux 2023 python3.11 Pending Fix
Amazon Linux 2023 python3.12 Pending Fix
Amazon Linux 2023 python3.13 Pending Fix
Amazon Linux 2023 python3.14 Pending Fix
Amazon Linux 2023 python3.9 Pending Fix

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 7.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:L