Vulnerabilities CVE-2026-4786

CVE-2026-4786

High

Open

TLP:CLEAR

Incomplete mitigation of CVE-2026-4519, %action expansion for command injection to webbrowser.open()

NVD CVE.org

AI Analysis

No AI analysis yet.

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.

Details

CVSS Score: 7.0
EPSS Score ⓘ: 0.29%

21.3th percentile
CVSS Vector: CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Confidence: 90%
Published: Apr 13, 2026
Last Modified: Aug 13, 2026

Notes

No notes yet. Click "Add Note" to create the first analysis note.

Opinions

No opinions yet. Be the first to assess this intelligence.