VULNERABILITY INTELLIGENCE

CVE-2026-4519

CVSS score3.3 LOW
EPSS probability0.31%
CISA KEVNot currently listed
Published2026-03-20
Last modified2026-08-13
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

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().

Weakness classification

  • 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-20
  • 0b0ca135-0b70-47e7-9f44-1890c2a1c46c: CWE-88

Primary references