CVE-2026-9078
Firefox iOS RTL Domain Rendering Issue in Link Preview
- State
- Published
- Severity
- 5.4 Medium
- Published
- May 25, 2026
- Updated
- May 26, 2026
- Reserved
- May 20, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 5.4 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L | CISA-ADP |
Weaknesses
- CWE-451 User Interface (UI) Misrepresentation of Critical Information
Affected Products
| Product | Versions |
|---|---|
Firefox for iOSMozilla |
|
References
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