CVE-2026-4786
Mitgation of CVE-2026-4519 was incomplete.
Published Apr 13, 2026 · updated Aug 13, 2026
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.
Code
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Timeline
Detection, updates, and resolution for this record.
Apr 13, 2026 · NIST NVD
Detected
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.
Aug 13, 2026 · NIST NVD
Updated
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.
Sources
- CVE.orgVulnerability recordCVE-2026-4786
Official CVE identifier
cve.org - NIST NVDVulnerability recordCVE-2026-4786
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.
nvd.nist.gov