CVE-2026-13862

Cross‑Origin Data Leakage via Web Authentication API in Chrome iOS

Published Jun 30, 2026 CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Description
Insufficient policy enforcement in Web Authentication (Passkeys & Security Keys) in Google Chrome on iOS prior to 150.0.7871.47 allowed an attacker in a privileged network position to leak cross-origin data via a crafted HTML page. (Chromium security severity: Medium)

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-4672-1 chromium security update
Debian DSA Debian DSA DSA-6378-1 chromium security update
History
Type Values Removed Values Added
Title Cross‑Origin Data Leakage via Web Authentication API in Chrome iOS
Type Values Removed Values Added
Title Web Authentication Policy Failure Allows Cross‑Origin Data Leakage in Chrome on iOS
Type Values Removed Values Added
Title Web Authentication Policy Failure Allows Cross‑Origin Data Leakage in Chrome on iOS
Type Values Removed Values Added
Title Insufficient Policy Enforcement in Web Authentication API Allows Cross‑Origin Data Leakage on Chrome iOS
Type Values Removed Values Added
Title Insufficient Policy Enforcement in Web Authentication API Allows Cross‑Origin Data Leakage on Chrome iOS
Type Values Removed Values Added
Title Cross‑Origin Data Leakage via Web Authentication API in Chrome iOS
Type Values Removed Values Added
Title Cross‑Origin Data Leakage via Web Authentication API in Chrome iOS
Type Values Removed Values Added
Title Cross‑Origin Data Leakage via Web Authentication API in Chrome for iOS
Type Values Removed Values Added
Title Cross‑Origin Data Leakage via Web Authentication API in Chrome for iOS
Type Values Removed Values Added
Title Cross‑Origin Data Leakage via Web Authentication API in Google Chrome on iOS
Type Values Removed Values Added
Title Cross‑Origin Data Leakage via Web Authentication API in Google Chrome on iOS
Type Values Removed Values Added
Title Cross‑Origin Data Leakage via Web Authentication API in Chrome for iOS
Type Values Removed Values Added
Title Cross‑Origin Data Leakage via Web Authentication API in Chrome for iOS
Type Values Removed Values Added
Title Cross‑Origin Data Leakage via Chrome's Web Authentication API on iOS
Type Values Removed Values Added
Title Cross‑Origin Data Leakage via Chrome's Web Authentication API on iOS
Type Values Removed Values Added
Title Chrome iOS Web Authentication Cross‑Origin Data Leakage Vulnerability
Type Values Removed Values Added
Title Chrome iOS Web Authentication Cross‑Origin Data Leakage Vulnerability
Type Values Removed Values Added
Title Cross‑Origin Data Leakage Through Web Authentication in Chrome on iOS
Weaknesses CWE-200
CWE-284
Type Values Removed Values Added
Weaknesses CWE-693
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N'}

ssvc

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

Type Values Removed Values Added
Title Cross‑Origin Data Leakage Through Web Authentication in Chrome on iOS
Weaknesses CWE-200
CWE-284
Type Values Removed Values Added
First Time appeared Google
Google chrome
Vendors & Products Google
Google chrome
Type Values Removed Values Added
Title Cross‑Origin Data Leakage Through Inadequate Web Authentication Policies in Chrome
Weaknesses CWE-200
CWE-284
Type Values Removed Values Added
Title Cross‑Origin Data Leakage Through Inadequate Web Authentication Policies in Chrome
Weaknesses CWE-200
CWE-284
Type Values Removed Values Added
Description Insufficient policy enforcement in Web Authentication (Passkeys & Security Keys) in Google Chrome on iOS prior to 150.0.7871.47 allowed an attacker in a privileged network position to leak cross-origin data via a crafted HTML page. (Chromium security severity: Medium)
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
Chrome
Published
Updated
Jul 1, 2026, 2:29 PM
Reserved
Jun 29, 2026, 11:03 PM
Status
Analyzed
Published
Jun 30, 2026, 11:17 PM
Modified
Oct 25, 2026, 9:10 PM