CVE-2026-7516: Lenovo Android App Clipboard Vulnerability

CVE-2026-7516 Overview

CVE-2026-7516 is a medium-severity vulnerability in the Lenovo Android Application distributed exclusively on tablets sold in the Chinese market. A website loaded in the application's built-in browser can overwrite the contents of the system clipboard without explicit user consent. The flaw is classified under [CWE-749: Exposed Dangerous Method or Function], indicating that a sensitive platform capability is reachable from untrusted web content. Lenovo published the issue in its security advisory portal on June 10, 2026.

Critical Impact
A malicious or compromised website rendered in the built-in browser can silently replace whatever the user has copied to the Android system clipboard, enabling content substitution attacks against passwords, cryptocurrency addresses, and other sensitive copied data.

Affected Products

Lenovo Android Application (preinstalled on Chinese-market Lenovo tablets)
Built-in browser component within the Lenovo Android Application
Tablet devices distributed through the Chinese consumer channel

Discovery Timeline

2026-06-10 - CVE-2026-7516 published to NVD
2026-06-10 - Last updated in NVD database

Technical Details for CVE-2026-7516

Vulnerability Analysis

The Lenovo Android Application embeds a browser component that loads arbitrary web content. The application exposes the Android system clipboard write capability to the rendering context without enforcing user-gesture validation or origin restrictions. A visited website can therefore invoke clipboard write operations programmatically. The attacker requires no authentication and operates over the network through normal web navigation. User interaction is limited to visiting an attacker-controlled or compromised page in the built-in browser. Confidentiality and availability are not directly impacted, but integrity of clipboard contents is compromised.

Root Cause

The root cause is an exposed dangerous function reachable from untrusted web origins. The built-in browser does not gate clipboard write access behind a user gesture, origin allowlist, or permission prompt. This matches the [CWE-749] pattern, where a sensitive method is callable by content that should not have access to it.

Attack Vector

An attacker hosts a webpage that calls the clipboard write API or invokes a JavaScript bridge exposed by the in-app browser. When a user on an affected Lenovo tablet opens the page in the Lenovo Android Application's built-in browser, the page silently replaces the clipboard contents. Common downstream abuse includes replacing copied cryptocurrency wallet addresses with attacker-controlled addresses or substituting URLs and credentials staged for paste. No exploit code or public proof-of-concept is currently published for this CVE.

Detection Methods for CVE-2026-7516

Indicators of Compromise

Unexpected clipboard contents on Lenovo tablets after browsing sessions in the built-in application browser
Outbound network connections from the Lenovo Android Application to untrusted or newly registered domains
User reports of pasted text differing from copied content, particularly wallet addresses or URLs

Detection Strategies

Inspect mobile device management (MDM) telemetry for the presence and version of the Lenovo Android Application on Chinese-market tablet inventory.
Monitor for web traffic patterns from in-app browsers requesting unusual JavaScript payloads that invoke clipboard APIs.
Correlate user-reported paste anomalies with timestamps of recent in-app browsing activity.

Monitoring Recommendations

Track Lenovo advisory channel Lenovo Security Detail #440821 for fixed version information.
Log application network egress from affected devices through enterprise mobile gateways where available.
Apply behavioral mobile threat defense to flag in-app browser sessions navigating to high-risk domains.

How to Mitigate CVE-2026-7516

Immediate Actions Required

Update the Lenovo Android Application to the version identified as fixed in the Lenovo Security Detail #440821 advisory.
Advise users on affected tablets to avoid using the built-in browser for sensitive workflows, including cryptocurrency transactions and credential management.
Use a hardened third-party browser for any web activity that involves copying sensitive data on affected devices.

Patch Information

Lenovo has published advisory #440821 covering this vulnerability. Refer to the Lenovo Security Detail #440821 page for the corrected application version and rollout details for tablets distributed through the Lenovo China store. Apply the update through the device's standard application update mechanism.

Workarounds

Disable or restrict use of the built-in browser inside the Lenovo Android Application until the patched version is installed.
Verify clipboard contents manually before pasting sensitive values such as wallet addresses, passwords, or financial identifiers.
Restrict installation of the affected application on managed devices through MDM application allowlists where Chinese-market tablets are in enterprise use.

bash

# Configuration example: MDM policy snippet to restrict the affected app
# (vendor-neutral pseudocode - adapt to your MDM platform)
policy:
  name: "Restrict-Lenovo-App-CVE-2026-7516"
  platform: android
  target_devices: "lenovo-tablets-cn"
  app_package: "com.lenovo.*"
  action: block_until_version >= "<patched_version_from_advisory_440821>"