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    CVE-2026-103418

    Firefox for iOS directly interpolated the page’s HTML language attribute into translation JavaScript, allowing attacker-controlled markup to execute code in Firefox’s privileged content world and bypass the page’s Content Security Policy. This vulnerability was fixed in Firefox for iOS 157.1.

    Published:Oct 13, 2026
    Last Modified:Oct 13, 2026
    EPS:Oct 13, 2026
    EPSS Score:0.00154
    CVSS Score:8.8

    Affected Products

    Vendor
    Mozilla
    Product
    Firefox For Ios

    Exploits

    No exploit reference

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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High