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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." } ], "value": "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. 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"lang": "en", "value": "RHSA-2026:21275: Red Hat Update Infrastructure 5" } ], "timeline": [ { "lang": "en", "time": "2026-04-13T22:01:38.006Z", "value": "Reported to Red Hat." }, { "lang": "en", "time": "2026-04-13T21:52:19.036Z", "value": "Made public." } ], "title": "python: cpython: Python: Arbitrary code execution via command injection in webbrowser.open() API", "workarounds": [ { "lang": "en", "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability." } ], "x_adpType": "supplier", "x_generator": { "engine": "sadp-cli 1.0.0" }, "providerMetadata": { "orgId": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "shortName": "redhat-SADP", "dateUpdated": "2026-07-15T00:48:45.183Z" } } ] } }