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.
History

Thu, 28 May 2026 20:30:00 +0000

Type Values Removed Values Added
First Time appeared Mozilla firefox
CPEs cpe:2.3:a:mozilla:firefox:*:*:*:*:*:iphone_os:*:*
Vendors & Products Mozilla firefox

Tue, 26 May 2026 22:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-1075

Tue, 26 May 2026 20:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-451
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 25 May 2026 16:00:00 +0000

Type Values Removed Values Added
First Time appeared Mozilla
Mozilla firefox For Ios
Weaknesses CWE-1075
Vendors & Products Mozilla
Mozilla firefox For Ios

Mon, 25 May 2026 14:30:00 +0000

Type Values Removed Values Added
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.
Title Firefox iOS RTL Domain Rendering Issue in Link Preview
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published: 2026-05-25T14:05:47.780Z

Updated: 2026-05-26T20:09:11.212Z

Reserved: 2026-05-20T12:53:12.834Z

Link: CVE-2026-9078

cve-icon Vulnrichment

Updated: 2026-05-26T20:08:55.347Z

cve-icon NVD

Status : Analyzed

Published: 2026-05-25T15:16:22.970

Modified: 2026-05-28T20:20:06.783

Link: CVE-2026-9078

cve-icon Redhat

No data.