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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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  • High 8.0
    CVE-2026-41431

    Zen Browser MAR updater ships with signature verification removed — unsigned updates accepted

    Zen is a firefox-based browser. Prior to 1.19.9b, Zen Browser ships a Mozilla Application Resource (MAR) updater (org.mozilla.updater) that has had all MAR signature verification stripped from the Firefox codebase it was forked from. The MAR files served to u…

    zen-browser desktop