CVE-2026-7905: Google Chrome RCE Vulnerability

CVE-2026-7905 Overview

CVE-2026-7905 is a high-severity vulnerability in the Media component of Google Chrome on Android. The flaw stems from insufficient validation of untrusted input [CWE-20] in versions prior to 148.0.7778.96. A remote attacker who has already compromised the renderer process can leverage a crafted HTML page to potentially escape the Chrome sandbox. Google rates the Chromium security severity as High. Successful exploitation moves an attacker from the constrained renderer context into the more privileged browser process, breaking a core security boundary on Android devices.

Critical Impact
Sandbox escape from a compromised renderer enables attackers to bypass Chrome's primary isolation boundary on Android, expanding access to the host browser process and user data.

Affected Products

Google Chrome on Android prior to 148.0.7778.96
Google Android devices running vulnerable Chrome builds
Chromium-based components relying on the affected Media subsystem

Discovery Timeline

2026-05-06 - CVE-2026-7905 published to NVD
2026-05-06 - Last updated in NVD database

Technical Details for CVE-2026-7905

Vulnerability Analysis

The vulnerability resides in the Media subsystem of Chrome on Android. Chrome enforces process isolation between the renderer, which parses untrusted web content, and the browser process, which holds higher privileges. The Media component exposes inter-process interfaces that the renderer uses to request media decoding and playback services. Insufficient validation of input crossing this boundary lets a malicious renderer send crafted messages or media data that the privileged side processes without adequate checks. This breakdown in trust boundaries enables a sandbox escape, undermining a foundational layer of Chrome's defense-in-depth model.

Exploitation requires the attacker to have already compromised the renderer process, typically via a separate memory-corruption or logic flaw. User interaction is also required, raising attack complexity. When chained, the bug supports full compromise of confidentiality, integrity, and availability on the device.

Root Cause

The root cause is improper input validation [CWE-20] in the Media component. Data and parameters originating from the lower-privileged renderer reach Media handling logic that does not sufficiently constrain ranges, types, or state transitions. The trust gap allows the renderer to influence privileged execution paths it should not control.

Attack Vector

The attack is network-based and delivered through a crafted HTML page. The victim must visit attacker-controlled content in a vulnerable Chrome build on Android. Once the renderer is compromised, the Media interface becomes the pivot point used to break out of the sandbox.

No verified public proof-of-concept code exists for this issue. Refer to the Chromium Issue Tracker Entry and the Google Chrome Stable Update for vendor-supplied technical details.

Detection Methods for CVE-2026-7905

Indicators of Compromise

Chrome for Android instances reporting versions earlier than 148.0.7778.96 in fleet inventory data.
Unexpected Chrome browser-process crashes or renderer-to-browser IPC anomalies recorded in mobile telemetry.
Outbound connections from Android devices to domains hosting suspicious HTML or media payloads following user browsing activity.

Detection Strategies

Inventory Chrome builds across managed Android devices and flag versions below the fixed release.
Correlate web gateway logs with mobile endpoint telemetry to identify users who visited domains delivering crafted media content.
Monitor mobile threat intelligence feeds for exploit chains targeting Chrome renderer flaws paired with Media-component escapes.

Monitoring Recommendations

Track Chrome update compliance through MDM and unified endpoint management dashboards.
Alert on repeated Chrome process termination events, which can indicate exploitation attempts against the renderer.
Review browser crash analytics from Chrome's enterprise reporting for clusters tied to media playback paths.

How to Mitigate CVE-2026-7905

Immediate Actions Required

Update Google Chrome on Android to version 148.0.7778.96 or later through the Google Play Store.
Enforce minimum Chrome version policies via MDM to block use of vulnerable builds.
Communicate to users that they should restart Chrome after the update so the new binary is loaded.

Patch Information

Google addressed CVE-2026-7905 in the Chrome stable channel update referenced in the Google Chrome Stable Update advisory. Installing Chrome 148.0.7778.96 or later on Android remediates the issue. Additional engineering context is available in the Chromium Issue Tracker Entry.

Workarounds

Restrict browsing to trusted sites until devices are patched, since exploitation requires loading attacker-controlled HTML.
Use enterprise URL filtering to block known malicious or unclassified domains on managed Android devices.
Disable or limit autoplay and unnecessary media features through Chrome enterprise policies where supported.

bash

# Example MDM/Chrome enterprise policy enforcing minimum version and URL filtering
# Android Enterprise managed configuration for com.android.chrome
{
  "URLBlocklist": ["*"],
  "URLAllowlist": ["https://*.corp.example.com", "https://*.google.com"],
  "DefaultBrowserSettingEnabled": true,
  "MinimumChromeVersion": "148.0.7778.96"
}