CVE-2026-9078— Firefox iOS RTL Domain Rendering Issue in Link Preview
Quick assessment
Affected
Mozilla Firefox for iOS
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Mozilla Firefox for iOS是美国Mozilla基金会的一款针对iOS设备设计的网页浏览器。 Mozilla Firefox for iOS 151.1之前版本存在安全漏洞，该漏洞源于在链接预览UI界面中错误显示特制的从右到左域名和国际化域名，可能导致特制的RTL主机名在视觉上重新排列显示域名的部分，使攻击者控制的站点显示为受信任来源。
Affected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Mozilla | Firefox for iOS | 151.1≤ * |
unaffected |
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I. Basic Information for CVE-2026-9078
Vulnerability Information
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Vulnerability Title
Firefox iOS RTL Domain Rendering Issue in Link Preview
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Mozilla Firefox for iOS 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mozilla Firefox for iOS是美国Mozilla基金会的一款针对iOS设备设计的网页浏览器。 Mozilla Firefox for iOS 151.1之前版本存在安全漏洞，该漏洞源于在链接预览UI界面中错误显示特制的从右到左域名和国际化域名，可能导致特制的RTL主机名在视觉上重新排列显示域名的部分，使攻击者控制的站点显示为受信任来源。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Mozilla | Firefox for iOS | 151.1 ~ * | - |
|
II. Public POCs for CVE-2026-9078
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-9078 (1)
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V. Comments for CVE-2026-9078
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