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CVE-2026-9078

Medium

Description

Firefox for iOS displayed specially crafted right-to-left (RTL) and internationalized domain names (IDNs) incorrectly in link preview UI surfaces. A crafted RTL hostname could visually reorder portions of the displayed domain, causing attacker-controlled sites to appear as trusted origins. This vulnerability was fixed in Firefox for iOS 151.1.

SeverityMedium
CVSS5.4
Exploit probability10. percentile0.2%
ProductMozilla Firefox
PublishedMay 25, 2026
First seenMay 25, 2026
Weakness typeCWE-451CWE-451

How to fix

Update
  • mozilla firefox151.1 or later

Affected products

ProductAffected versionsFixed in
mozilla firefoxv < 151.1151.1

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