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CVE-2026-8706— Sensitive user data could be leaked to other applications through Reader mode

AI Predicted 8.1 Difficulty: Moderate EPSS 0.02% · P5

Possible ATT&CK Techniques 1AI

T1001 · Data Obfuscation

Affected Version Matrix 1

VendorProductVersion RangeStatus
MozillaFirefox for iOS151.0≤ *unaffected
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I. Basic Information for CVE-2026-8706

Vulnerability Information
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Vulnerability Title
Sensitive user data could be leaked to other applications through Reader mode
Source: NVD (National Vulnerability Database)
Vulnerability Description
Firefox for iOS hosted Reader mode on an unauthenticated local web server, allowing another application on the same device to request arbitrary URLs and receive the response rendered with the signed-in user's cookies. This vulnerability was fixed in Firefox for iOS 151.0.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Mozilla Firefox 信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mozilla Firefox是美国Mozilla基金会的一款开源Web浏览器。 Mozilla Firefox 151.0之前版本存在信息泄露漏洞，该漏洞源于Reader模式托管在未认证的本地Web服务器上，可能导致其他应用请求任意URL并接收响应。
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

VendorProductAffected VersionsCPESubscribe
MozillaFirefox for iOS 151.0 ~ * -

II. Public POCs for CVE-2026-8706

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III. Intelligence Information for CVE-2026-8706

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Vendor Advisories for CVE-2026-8706 (1)

Same Patch Batch · Mozilla · 2026-05-19 · 32 CVEs total

CVE-2026-8960Spoofing issue in WebExtensions
CVE-2026-8975Memory safety bugs fixed in Firefox ESR 115.36, Firefox ESR 140.11 and Firefox 151
CVE-2026-8974Memory safety bugs fixed in Firefox ESR 140.11 and Firefox 151
CVE-2026-8973Memory safety bugs fixed in Firefox 151
CVE-2026-8972Privilege escalation in the WebRTC: Audio/Video component
CVE-2026-8971Same-origin policy bypass in the Networking: JAR component
CVE-2026-8970Privilege escalation in the Security component
CVE-2026-8969Mitigation bypass in the DOM: Security component
CVE-2026-8968Denial-of-service due to invalid pointer in the Audio/Video: Web Codecs component
CVE-2026-8967Information disclosure in the Graphics: WebGPU component
CVE-2026-8966Information disclosure in the IP Protection component
CVE-2026-8965Information disclosure in the DOM: Security component
CVE-2026-8964Spoofing issue in the Popup Blocker component
CVE-2026-8963Spoofing issue in the Web Speech component
CVE-2026-8962Mitigation bypass in the DOM: Security component
CVE-2026-8961Spoofing issue in the Form Autofill component
CVE-2026-8945Sandbox escape in Firefox and Firefox Focus for Android
CVE-2026-8959Sandbox escape due to incorrect boundary conditions in the Widget: Win32 component
CVE-2026-8958Information disclosure, sandbox escape in the Security: Process Sandboxing component
CVE-2026-8957Privilege escalation in the Enterprise Policies component

Showing top 20 of 32 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Firefox for iOS
Same vendor: Mozilla

V. Comments for CVE-2026-8706

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