Side-channel information leakage in WebAuthentication in Google Chrome on iOS prior to 150.0.7871.47 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: Medium)

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact None

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00305.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Google Chrome affected
Version Status Constraints
150.0.7871.47 affected < 150.0.7871.47

No data.

No data.

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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
Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_0175352312.html cve-icon
https://issues.chromium.org/issues/500588580 cve-icon
History

Sun, 02 Aug 2026 01:00:00 +0000

Type Values Removed Values Added
Title Cross‑Origin Leakage via WebAuthentication in Chrome iOS

Tue, 28 Jul 2026 16:15:00 +0000

Type Values Removed Values Added
Title Side‑Channel Leakage in Chrome iOS WebAuthentication Allows Cross‑Origin Data Exfiltration

Fri, 24 Jul 2026 18:30:00 +0000

Type Values Removed Values Added
Title Side‑Channel Leakage in Chrome iOS WebAuthentication Allows Cross‑Origin Data Exfiltration

Tue, 21 Jul 2026 17:15:00 +0000

Type Values Removed Values Added
Title Information Leakage via WebAuthentication Side-Channel in Chrome on iOS

Thu, 16 Jul 2026 00:30:00 +0000

Type Values Removed Values Added
Title Information Leakage via WebAuthentication Side-Channel in Chrome on iOS

Mon, 13 Jul 2026 16:30:00 +0000

Type Values Removed Values Added
Title Cross‑origin Data Leakage via WebAuthentication in Chrome for iOS

Sun, 12 Jul 2026 03:00:00 +0000

Type Values Removed Values Added
Title Cross‑origin Data Leakage via WebAuthentication in Chrome for iOS

Sat, 11 Jul 2026 03:00:00 +0000

Type Values Removed Values Added
Title Cross‑origin data leakage via WebAuthentication in Chrome on iOS

Fri, 10 Jul 2026 04:30:00 +0000

Type Values Removed Values Added
Title Cross‑origin data leakage via WebAuthentication in Chrome on iOS

Tue, 07 Jul 2026 22:00:00 +0000

Type Values Removed Values Added
Title Cross‑Origin Data Leakage via WebAuthentication Side‑Channel in Chrome iOS

Mon, 06 Jul 2026 21:00:00 +0000

Type Values Removed Values Added
Title Cross‑Origin Data Leakage via WebAuthentication Side‑Channel in Chrome iOS

Mon, 06 Jul 2026 04:00:00 +0000

Type Values Removed Values Added
Title Cross‑Origin Data Leakage through WebAuthentication in Chrome on iOS

Sun, 05 Jul 2026 15:15:00 +0000

Type Values Removed Values Added
Title Cross‑Origin Data Leakage through WebAuthentication in Chrome on iOS

Sun, 05 Jul 2026 04:00:00 +0000

Type Values Removed Values Added
Title Side-Channel Information Leakage via WebAuthentication on iOS

Sat, 04 Jul 2026 15:45:00 +0000

Type Values Removed Values Added
Title Side-Channel Information Leakage via WebAuthentication on iOS

Fri, 03 Jul 2026 17:00:00 +0000

Type Values Removed Values Added
Title Chrome WebAuthentication Side-Channel Leak on iOS

Thu, 02 Jul 2026 23:00:00 +0000

Type Values Removed Values Added
Title Chrome WebAuthentication Side-Channel Leak on iOS

Thu, 02 Jul 2026 15:00:00 +0000

Type Values Removed Values Added
Title Side-Channel Leakage of Cross-Origin Data via WebAuthentication in Chrome on iOS

Thu, 02 Jul 2026 07:00:00 +0000

Type Values Removed Values Added
Title Side-Channel Leakage of Cross-Origin Data via WebAuthentication in Chrome on iOS

Wed, 01 Jul 2026 22:45:00 +0000

Type Values Removed Values Added
Title Chrome iOS WebAuthentication Side‑Channel Information Leak

Wed, 01 Jul 2026 16:30:00 +0000

Type Values Removed Values Added
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'}

Wed, 01 Jul 2026 12:30:00 +0000

Type Values Removed Values Added
First Time appeared Google
Google chrome
Vendors & Products Google
Google chrome

Wed, 01 Jul 2026 06:15:00 +0000

Type Values Removed Values Added
Title Chrome iOS WebAuthentication Side‑Channel Information Leak

Tue, 30 Jun 2026 23:15:00 +0000

Type Values Removed Values Added
Description Side-channel information leakage in WebAuthentication in Google Chrome on iOS prior to 150.0.7871.47 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: Medium)
Weaknesses CWE-20
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Chrome

Published:

Updated: 2026-07-01T19:04:25.313Z

Reserved: 2026-06-29T23:03:42.994Z

Link: CVE-2026-13889

cve-icon Vulnrichment

Updated: 2026-07-01T15:22:59.210Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-02T00:45:03Z

Weaknesses