PatchSiren

zen-browser CVE debriefs

These pages are published after PatchSiren validates generated defensive summaries against stored public CVE and source evidence.

NONE zen-browser CVE published 2026-07-09

CVE-2026-57501

CVE-2026-57501 is a security vulnerability in the Zen browser, a firefox-based browser. Prior to version 1.21.5b, the browser's glance and split-view context-menu actions could load a page-controlled link URL with System privileges, allowing malicious web pages to bypass content-to-file security checks. This issue allows attackers to potentially access sensitive information or execute arbitrary code. User [truncated]