CVE-2026-103418

CVSS 8.8 (high) · published 2026-10-13

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.

Weakness: CWE-79

Source: NVD CVE-2026-103418

References

• https://bugzilla.mozilla.org/show_bug.cgi?id=2062109
• https://www.mozilla.org/security/advisories/mfsa2026-105/

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