CVE-2026-4519 (GCVE-0-2026-4519)
Vulnerability from cvelistv5
Published
2026-03-20 15:08
Modified
2026-04-13 21:47
Summary
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().
Impacted products
Vendor Product Version
Python Software Foundation CPython Version: 0
Version: 3.14.0
Version: 3.15.0a1
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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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