CVE-2026-13954: Google Chrome Information Disclosure Flaw

CVE-2026-13954 Overview

CVE-2026-13954 is an information disclosure vulnerability in Google Chrome on Android caused by insufficient policy enforcement in the XML component. A remote attacker can craft a malicious HTML page that leverages the flaw to read potentially sensitive information from Chrome's process memory. Exploitation requires user interaction, such as visiting an attacker-controlled site. Google has addressed the issue in Chrome for Android version 150.0.7871.47. The Chromium project rated the security severity as Medium, and the flaw is tracked under [CWE-284] Improper Access Control.

Critical Impact
A remote attacker can obtain sensitive data from Chrome process memory on Android devices by luring a user to a crafted HTML page.

Affected Products

Google Chrome on Android prior to 150.0.7871.47
Google Android devices running vulnerable Chrome builds
Chromium-based components sharing the affected XML policy code

Discovery Timeline

2026-06-30 - CVE-2026-13954 published to NVD
2026-07-01 - Last updated in NVD database

Technical Details for CVE-2026-13954

Vulnerability Analysis

The vulnerability resides in Chrome's XML handling on Android, where policy enforcement is insufficient. Chrome's XML processing pipeline fails to correctly apply access control boundaries when parsing attacker-controlled markup. As a result, a crafted HTML page containing malicious XML content can cause the browser to expose uninitialized or adjacent process memory. The disclosed memory may contain fragments of other page contents, tokens, or internal browser state. The flaw is classified as an information disclosure issue under [CWE-284] Improper Access Control. Exploitation is network-based and requires the victim to load or interact with the attacker's page. No privileges are required, and no exploit is currently known to be available publicly.

Root Cause

The root cause is insufficient policy enforcement inside Chrome's XML component. The parser or associated policy layer does not fully validate origin or access boundaries during XML processing, allowing crafted content to reach memory regions that should remain isolated from web content.

Attack Vector

An attacker hosts a crafted HTML page and lures a user of vulnerable Chrome on Android to visit it. When the browser parses the embedded XML payload, insufficient policy checks allow the page to read data from Chrome's process memory. See the Chromium Issue Tracker Entry for reference details.

No verified public proof-of-concept exists for this vulnerability. Refer to the Google Chrome Update Announcement for release notes.

Detection Methods for CVE-2026-13954

Indicators of Compromise

Chrome for Android clients still reporting a User-Agent version below 150.0.7871.47 after the patch window
Outbound requests from Android devices to unfamiliar domains delivering HTML pages with embedded or referenced XML resources
Unexplained mobile browser crashes or renderer restarts occurring shortly after visiting external links

Detection Strategies

Inventory Chrome versions across managed Android fleets using MDM telemetry and flag builds prior to 150.0.7871.47
Inspect web proxy and DNS logs for user visits to newly registered or low-reputation domains serving XML-heavy HTML content
Correlate phishing or smishing campaigns that direct Android users to external links with subsequent access to sensitive internal resources

Monitoring Recommendations

Continuously monitor mobile browser version compliance and alert on devices lagging behind the vendor-supported build
Track user-reported browser anomalies on Android, including tab crashes tied to specific URLs
Ingest mobile threat defense and web filtering telemetry into a centralized data lake to surface repeat visits to suspicious hosts

How to Mitigate CVE-2026-13954

Immediate Actions Required

Update Google Chrome on Android to version 150.0.7871.47 or later through the Google Play Store
Push the updated Chrome build to managed Android devices via enterprise mobility management to enforce compliance
Advise users to avoid opening untrusted links on Android devices until the update is confirmed installed

Patch Information

Google addressed the flaw in Chrome for Android 150.0.7871.47. Details are provided in the Google Chrome Update Announcement and the Chromium Issue Tracker Entry. Users should verify the installed version under Chrome's About page after updating.

Workarounds

Restrict use of Chrome on Android for sensitive workflows until the patched build is deployed
Enforce web filtering to block access to untrusted or newly registered domains from mobile devices
Use an alternate, up-to-date browser on Android for high-risk browsing sessions during the remediation window

bash

# Verify installed Chrome version on managed Android devices via ADB
adb shell dumpsys package com.android.chrome | grep versionName

# Expected patched output:
# versionName=150.0.7871.47