CVE-2026-2322 Overview
CVE-2026-2322 is a UI Spoofing vulnerability resulting from an inappropriate implementation in the File input component of Google Chrome. This vulnerability allows a remote attacker who convinces a user to engage in specific UI gestures to perform UI spoofing via a crafted HTML page. The flaw is classified under CWE-451 (User Interface (UI) Misrepresentation of Critical Information).
Critical Impact
Attackers can exploit this vulnerability to deceive users through UI spoofing, potentially leading to information disclosure or unintended user actions by misrepresenting file input dialogs.
Affected Products
- Google Chrome versions prior to 145.0.7632.45
- Chromium-based browsers using affected file input implementations
- Desktop platforms running vulnerable Chrome versions
Discovery Timeline
- 2026-02-11 - CVE CVE-2026-2322 published to NVD
- 2026-02-12 - Last updated in NVD database
Technical Details for CVE-2026-2322
Vulnerability Analysis
This vulnerability stems from an inappropriate implementation in how Google Chrome handles File input elements. The flaw allows attackers to manipulate the user interface to misrepresent critical information to users. When a victim visits a maliciously crafted HTML page and performs specific UI gestures (such as clicks or other interactions), the attacker can spoof UI elements related to file input functionality.
The attack requires user interaction, making it a social engineering-aided attack vector. While the Chromium security team has classified this as low severity, the potential for UI spoofing can lead to users unknowingly selecting unintended files or being deceived about what actions they are performing.
Root Cause
The vulnerability is rooted in CWE-451: User Interface (UI) Misrepresentation of Critical Information. The File input component in Chrome fails to properly validate or display accurate information about file selection dialogs, allowing crafted HTML pages to manipulate what users perceive in the interface. This implementation gap enables attackers to create deceptive UI elements that appear legitimate but serve malicious purposes.
Attack Vector
The attack is network-based and requires user interaction. An attacker must craft a malicious HTML page and convince a target user to visit it. Once on the page, the user must perform specific UI gestures that trigger the spoofing behavior. The attack flow typically involves:
- Attacker creates a crafted HTML page with manipulated file input elements
- Victim is lured to the malicious page via phishing or other social engineering
- Victim interacts with the page through specific UI gestures
- The file input UI is spoofed, potentially deceiving the user about file selections or actions
The vulnerability does not allow direct code execution but can facilitate social engineering attacks by making malicious interactions appear legitimate.
Detection Methods for CVE-2026-2322
Indicators of Compromise
- Unusual or unexpected file input dialogs appearing on web pages
- Reports from users about confusing or inconsistent file selection interfaces
- Web pages with complex JavaScript manipulating file input elements in unexpected ways
- Browser logs showing interactions with suspicious HTML pages containing crafted file input elements
Detection Strategies
- Monitor for suspicious web traffic patterns involving pages with heavily obfuscated JavaScript targeting file input elements
- Implement browser policy logging to track file input interactions across the organization
- Use web proxy solutions to analyze HTML content for known UI spoofing patterns
- Deploy endpoint detection rules that flag unusual Chrome process behavior during file selection operations
Monitoring Recommendations
- Enable Chrome browser telemetry and security logging where available
- Monitor for user-reported incidents involving unexpected file upload or selection behavior
- Review web filtering logs for access to known malicious domains hosting exploit pages
- Implement user awareness training to report suspicious file input behavior
How to Mitigate CVE-2026-2322
Immediate Actions Required
- Update Google Chrome to version 145.0.7632.45 or later immediately across all endpoints
- Verify automatic Chrome updates are enabled and functioning properly
- Communicate to users to exercise caution when interacting with file input dialogs on unfamiliar websites
- Review and update browser security policies to restrict access to untrusted web content
Patch Information
Google has addressed this vulnerability in Chrome version 145.0.7632.45. The fix is available through Chrome's standard update mechanism. Organizations should verify that all managed Chrome installations have been updated by checking the version number in chrome://settings/help. For detailed release information, refer to the Google Chrome Update Blog Post. Additional technical details can be found in the Chromium Issue Tracker Entry.
Workarounds
- Restrict users from visiting untrusted websites until patches can be applied
- Implement strict Content Security Policy headers on internal web applications to reduce attack surface
- Consider using browser isolation solutions to contain potential exploitation attempts
- Educate users to verify file input dialogs carefully before proceeding with file selections
- Temporarily disable or restrict file input functionality on high-risk web applications if feasible
# Verify Chrome version on managed endpoints
google-chrome --version
# Expected output: Google Chrome 145.0.7632.45 or higher
# Force Chrome update via command line (Linux/macOS)
# Restart Chrome after update
pkill chrome && google-chrome &
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
