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Vulnerability Database/CVE-2026-11275

CVE-2026-11275: Google Chrome Auth Bypass Vulnerability

CVE-2026-11275 is an authentication bypass flaw in Google Chrome on Android that allows attackers to bypass navigation restrictions. This article covers technical details, affected versions, impact, and mitigation.

Published:

CVE-2026-11275 Overview

CVE-2026-11275 is a navigation restriction bypass in the Page Info component of Google Chrome on Android. The flaw affects Chrome versions prior to 149.0.7827.53. An attacker who has already compromised the renderer process can use a crafted HTML page to bypass navigation restrictions enforced by the browser. The issue is categorized under [CWE-284: Improper Access Control].

Exploitation requires a pre-compromised renderer, which raises the bar for standalone abuse. However, the bug is useful as a second-stage primitive in a multi-vulnerability chain targeting mobile users. Google addressed the issue in the stable channel update tracked by the Chromium Issue Tracker Entry.

Critical Impact

A compromised renderer process can bypass Chrome's Page Info navigation restrictions on Android, enabling user redirection to attacker-controlled destinations and supporting sandbox escape chains.

Affected Products

  • Google Chrome for Android prior to 149.0.7827.53
  • Google Android devices running vulnerable Chrome builds
  • Chromium-derived mobile browsers sharing the affected Page Info implementation

Discovery Timeline

  • 2026-06-05 - CVE-2026-11275 published to NVD
  • 2026-06-08 - Last updated in NVD database

Technical Details for CVE-2026-11275

Vulnerability Analysis

The vulnerability resides in the Page Info surface of Chrome on Android. Page Info is the UI component reached through the site information icon in the address bar. It exposes navigation and permission controls for the current origin. An inappropriate implementation in this component fails to consistently enforce navigation restrictions when requests originate from a compromised renderer.

The CWE-284 classification indicates an access control failure rather than memory corruption. The browser process trusts an input or transition that should have been validated against the active security policy. As a result, navigation decisions normally gated by the browser process can be influenced from a renderer the attacker already controls.

The impact aligns with an integrity violation on user navigation state. Confidentiality and availability are not directly affected, but redirected navigation can be chained with phishing or further exploitation.

Root Cause

The root cause is improper enforcement of navigation policy within the Page Info code path on Android. The browser process accepts navigation-related signals derived from renderer state without revalidating them against expected origin and transition constraints. This violates the principle that the renderer is untrusted in Chrome's site isolation model.

Attack Vector

The attack vector is network-based and requires user interaction. The attacker must first compromise the renderer process, typically through a separate Chrome vulnerability such as a V8 or Blink flaw. Once renderer code execution is achieved, a crafted HTML page triggers the Page Info code path to perform a navigation that policy should have blocked. The end result is navigation to an attacker-chosen destination outside the restrictions Chrome would normally enforce.

No public proof-of-concept code is available. The Chromium project rated the severity Low internally, consistent with the prerequisite of a pre-compromised renderer. Refer to the Chromium Issue Tracker Entry for technical details once access restrictions are lifted.

Detection Methods for CVE-2026-11275

Indicators of Compromise

  • Android devices running Chrome versions earlier than 149.0.7827.53 connecting to untrusted web content
  • Unexpected navigation events in browser telemetry that do not match user-initiated gestures
  • Renderer process crashes or anomalous IPC traffic preceding navigation anomalies on mobile endpoints

Detection Strategies

  • Inventory installed Chrome versions on managed Android devices through MDM reporting and flag builds below 149.0.7827.53
  • Correlate mobile browser telemetry with DNS and proxy logs to identify navigation to destinations that bypass enterprise URL filtering
  • Monitor for chained exploitation patterns where renderer compromise indicators precede unexpected cross-origin transitions

Monitoring Recommendations

  • Enable browser version compliance checks within mobile threat defense tooling and alert on outdated Chrome installations
  • Forward web proxy and secure web gateway logs to a centralized data lake for retrospective hunting against newly identified malicious domains
  • Track Chrome stable channel release notes and reconcile fleet versions weekly against the latest fixed build

How to Mitigate CVE-2026-11275

Immediate Actions Required

  • Update Google Chrome on Android to version 149.0.7827.53 or later through the Google Play Store
  • Push the updated Chrome build to all managed Android devices using enterprise mobility management policies
  • Restrict access to high-risk web content on unpatched devices until updates are confirmed installed

Patch Information

Google released the fix in the Chrome stable channel update for Android. Details are available in the Google Chrome Update Announcement. The corresponding Chromium tracking entry is the Chromium Issue Tracker Entry. Administrators should verify deployment by querying the installed Chrome package version on Android endpoints.

Workarounds

  • Enforce auto-update for Chrome on Android through Google Play managed configurations to eliminate version drift
  • Apply strict URL filtering at the network egress layer to reduce the value of any navigation restriction bypass
  • Limit installation of untrusted third-party applications that could be combined with renderer-level Chrome exploits
bash
# Verify installed Chrome version on a managed Android device via ADB
adb shell dumpsys package com.android.chrome | grep versionName
# Expected output should report versionName 149.0.7827.53 or later

Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.

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