CVE-2026-103418

8.8High

Published 13 Oct 2026 · NVD status: Deferred

8.8High

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: Required
Impact: Full C/I/A compromise
Weakness: CWE-79

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CVSS v3.1 · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

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NVD description

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.

References

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

Source: nvd.nist.gov/vuln/detail/CVE-2026-103418