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OpenAdvisories

Vendor

zen-browser

5 known vulnerabilities.

Products

desktop 5
All Critical High Medium Low Exploited only Public exploit

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  • Medium 6.3
    CVE-2026-45150

    Zen Browser - Missing Fullscreen Security Notification Allows Origin Spoofing

    Zen is a firefox-based browser. Prior to 1.19.13b, Zen Browser did not provide a persistent, clearly visible security notification when a webpage entered fullscreen mode, allowing an attacker-controlled page to hide the real browser UI and origin information,…

    zen-browser desktop
  • Medium 4.7
    CVE-2026-44659

    Zen Browser Mac - Address Bar Spoofing via Long Subdomain

    Zen is a firefox-based browser. Prior to 1.19.12b, the ZEN Browser incorrectly truncates long hostnames in the address bar and shows only the attacker-controlled prefix of the subdomain, hiding the actual registrable domain (eTLD+1). As a result, an attacker …

    zen-browser desktop