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CVE Vulnerability Database
Vulnerability Database/CVE-2025-3071

CVE-2025-3071: Google Chrome Auth Bypass Vulnerability

CVE-2025-3071 is an authentication bypass vulnerability in Google Chrome that allows attackers to bypass same origin policy through crafted HTML pages. This article covers technical details, affected versions, and mitigation.

Updated: January 22, 2026

CVE-2025-3071 Overview

CVE-2025-3071 is an inappropriate implementation vulnerability in the Navigations component of Google Chrome prior to version 135.0.7049.52. This security flaw allows a remote attacker who convinces a user to engage in specific UI gestures to bypass the same origin policy via a crafted HTML page. The vulnerability represents a weakness in origin validation (CWE-346), which could enable cross-origin data access or manipulation.

Critical Impact

Successful exploitation enables attackers to bypass same origin policy protections, potentially allowing unauthorized access to sensitive data from other origins or cross-site attacks when users interact with malicious web pages.

Affected Products

  • Google Chrome versions prior to 135.0.7049.52
  • Chromium-based browsers using affected navigation components
  • All platforms running vulnerable Chrome versions (Windows, macOS, Linux)

Discovery Timeline

  • 2025-04-02 - CVE-2025-3071 published to NVD
  • 2025-04-21 - Last updated in NVD database

Technical Details for CVE-2025-3071

Vulnerability Analysis

This vulnerability stems from an inappropriate implementation in Chrome's Navigations component that handles how the browser processes navigation requests and enforces origin isolation. The same origin policy (SOP) is a fundamental web security mechanism that restricts how documents or scripts loaded from one origin can interact with resources from another origin. When this policy is bypassed, attackers can potentially read sensitive data from cross-origin resources, execute actions on behalf of users on other sites, or conduct other cross-site attacks.

The exploitation requires user interaction through specific UI gestures, meaning an attacker must craft a malicious HTML page and convince the victim to perform certain actions while viewing it. This social engineering requirement provides some mitigation, but determined attackers can often manipulate users into performing the necessary interactions.

Root Cause

The root cause is classified under CWE-346 (Origin Validation Error), indicating that Chrome's navigation handling code fails to properly validate or enforce origin restrictions in certain scenarios. This inappropriate implementation allows crafted navigation sequences to bypass the security boundaries that should isolate content from different origins.

Attack Vector

The attack vector is network-based and requires the following conditions:

  1. Attacker-controlled web page: The attacker must host or inject a crafted HTML page containing the exploit code
  2. User interaction: The victim must be convinced to visit the malicious page and perform specific UI gestures (clicks, keypresses, or other interactions)
  3. Navigation manipulation: The exploit leverages the flawed navigation handling to bypass same origin policy checks

The vulnerability can be exploited remotely through any method that delivers malicious web content to the user, including phishing emails, compromised websites, or malicious advertisements.

Detection Methods for CVE-2025-3071

Indicators of Compromise

  • Unusual cross-origin requests in browser network logs that bypass expected SOP restrictions
  • Unexpected navigation patterns or redirects in browser history that indicate navigation manipulation
  • Client-side JavaScript execution from untrusted sources triggering suspicious UI gesture handlers
  • Reports of unauthorized data access or actions performed on websites without user consent

Detection Strategies

  • Monitor browser version deployments across the organization to identify systems running Chrome versions below 135.0.7049.52
  • Implement Content Security Policy (CSP) headers on protected web applications to add defense-in-depth
  • Use endpoint detection solutions to identify browsers with known vulnerable versions
  • Deploy web application firewalls with capabilities to detect unusual navigation patterns

Monitoring Recommendations

  • Enable Chrome browser reporting to track installed versions enterprise-wide
  • Monitor security bulletins from Google Chrome Releases for updates and patches
  • Review web server logs for unusual referrer patterns that may indicate exploitation attempts
  • Implement browser isolation technologies for high-risk users or untrusted web content

How to Mitigate CVE-2025-3071

Immediate Actions Required

  • Update Google Chrome to version 135.0.7049.52 or later immediately across all systems
  • Enable automatic Chrome updates to ensure timely installation of future security patches
  • Educate users about the risks of interacting with untrusted web pages and suspicious UI prompts
  • Consider implementing browser isolation for sensitive operations until patches are deployed

Patch Information

Google has addressed this vulnerability in Chrome version 135.0.7049.52. The fix corrects the inappropriate implementation in the Navigations component to properly enforce same origin policy restrictions. Organizations should prioritize updating Chrome installations through their standard software distribution mechanisms.

For detailed patch information, refer to the Google Chrome Stable Update announcement. Additional technical details may be available at the Chromium Issue Tracker Entry.

Workarounds

  • Restrict access to untrusted websites through web filtering or proxy configurations until updates are applied
  • Implement strict Content Security Policy headers on sensitive internal web applications
  • Use browser isolation technologies to sandbox browsing sessions from untrusted sites
  • Consider temporarily using alternative browsers for sensitive operations if immediate patching is not possible
bash
# Verify Chrome version on Linux/macOS
google-chrome --version

# Force Chrome update check via command line (Windows)
# Navigate to chrome://settings/help in the browser

# Enterprise deployment: Use Group Policy or configuration management
# to push Chrome updates to version 135.0.7049.52 or later

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

  • Vulnerability Details
  • TypeAuth Bypass

  • Vendor/TechGoogle Chrome

  • SeverityMEDIUM

  • CVSS Score5.4

  • EPSS Probability0.01%

  • Known ExploitedNo
  • CVSS Vector
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
  • Impact Assessment
  • ConfidentialityLow
  • IntegrityLow
  • AvailabilityNone
  • CWE References
  • CWE-346
  • Technical References
  • Google Chrome Stable Update

  • Chromium Issue Tracker Entry
  • Related CVEs
  • CVE-2026-9115: Google Chrome Auth Bypass Vulnerability

  • CVE-2026-7952: Google Chrome Auth Bypass Vulnerability

  • CVE-2026-7959: Google Chrome Auth Bypass Vulnerability

  • CVE-2026-7966: Google Chrome Auth Bypass Vulnerability
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