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CVE-2026-4786

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CVE-2026-4786

Published: Apr 13, 2026

Modified: Apr 29, 2026

PUBLISHED

Description

Mitgation of CVE-2026-4519 was incomplete. If the URL contained "%action" the mitigation could be bypassed for certain browser types the "webbrowser.open()" API could have commands injected into the underlying shell. See CVE-2026-4519 for details.

VendorProductVersions

Python Software Foundation

CPython

affected
0 - < 3.15.0

Weaknesses (CWE)

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