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…

PriorityP348high8.8CVSS 3.1

AVNACLPRNUIRSUCHIHAH

EPSS

0.30%

22.6th percentile

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.

Affected

1 ranges

Vendor	Product	Version range	Fixed in
mozilla	firefox_for_ios	< Firefox for iOS 157.1	Firefox for iOS 157.1

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