CVE-2026-13810 Overview
CVE-2026-13810 is an information disclosure vulnerability in the Input component of Google Chrome on Linux. The flaw affects Chrome versions prior to 150.0.7871.47 and stems from an inappropriate implementation that allows attackers to read potentially sensitive data from process memory. Exploitation requires a victim to load a crafted HTML page, making drive-by web attacks the primary delivery mechanism. Chromium classifies the security severity as High, while the National Vulnerability Database (NVD) assigns a CVSS 3.1 base score of 6.5. The weakness is categorized under CWE-200: Exposure of Sensitive Information to an Unauthorized Actor.
Critical Impact
A remote attacker can exfiltrate confidential data from the Chrome renderer process memory by convincing a Linux user to visit a malicious web page.
Affected Products
- Google Chrome on Linux prior to 150.0.7871.47
- Linux distributions running vulnerable Chrome builds
- Chromium-based downstream browsers that inherit the Input component code
Discovery Timeline
- 2026-06-30 - CVE-2026-13810 published to NVD
- 2026-07-01 - Last updated in NVD database
Technical Details for CVE-2026-13810
Vulnerability Analysis
The vulnerability lives in Chrome's Input handling subsystem on Linux. An inappropriate implementation allows a crafted HTML page to trigger conditions in which uninitialized or adjacent memory contents are returned to attacker-controlled JavaScript context. This exposes bytes from the renderer process that should remain isolated from web content.
Because the leak occurs inside the renderer sandbox boundary, attackers can harvest data such as pointer values, session tokens, or fragments of previously processed web content. The information disclosure also weakens Address Space Layout Randomization (ASLR), giving adversaries a foundation for follow-on memory corruption exploits.
The issue is tracked in the Chromium Issue Tracker Entry and was fixed in the Google Chrome Update Blog stable channel release for desktop.
Root Cause
The defect is an inappropriate implementation in the Input component. The affected code paths handle input events without correctly bounding or initializing the memory regions exposed to the web renderer. This falls under [CWE-200], where sensitive process memory becomes reachable by unauthorized actors via legitimate browser APIs.
Attack Vector
Exploitation is network-based and requires user interaction. The attacker hosts a malicious HTML page or injects crafted markup into a compromised site. When a Linux user opens the page in a vulnerable Chrome build, embedded JavaScript triggers the Input handling path to read memory contents. No authentication is required and attack complexity is low.
The vulnerability manifests entirely within the browser. Refer to the Chromium Issue Tracker Entry for restricted technical details once Google removes the access embargo.
Detection Methods for CVE-2026-13810
Indicators of Compromise
- Chrome browser versions on Linux endpoints below 150.0.7871.47 reported by inventory tools
- Outbound connections from browser processes to unknown domains hosting HTML payloads targeting Input APIs
- Unusual JavaScript execution patterns querying input events immediately after page load
Detection Strategies
- Inventory installed Chrome versions across Linux fleets and flag builds earlier than 150.0.7871.47
- Correlate web proxy logs with threat intelligence feeds that publish URLs delivering Chromium information disclosure payloads
- Alert on renderer process crashes or anomalous memory reads coinciding with browsing sessions
Monitoring Recommendations
- Enable browser telemetry forwarding to a central Security Information and Event Management (SIEM) platform for version and crash tracking
- Monitor DNS and HTTP telemetry from Linux workstations for newly registered or low-reputation domains serving HTML content
- Track Chrome auto-update status to confirm patched versions propagate across managed endpoints
How to Mitigate CVE-2026-13810
Immediate Actions Required
- Update Google Chrome on all Linux endpoints to version 150.0.7871.47 or later
- Verify enterprise Chrome policies allow automatic updates and restart prompts
- Restrict browsing to trusted sites for users on unpatched systems until updates complete
Patch Information
Google released the fix in the Chrome stable channel update announced on the Google Chrome Update Blog. Administrators managing Chromium-based derivatives should track vendor advisories for downstream releases that incorporate the same patch.
Workarounds
- Deploy strict site isolation and disable JavaScript on untrusted origins using enterprise policy until patching completes
- Route browser traffic through a secure web gateway that blocks known malicious HTML payloads
- Reduce exposure by enforcing least-privilege browsing profiles and disabling unnecessary Chrome extensions
# Update Google Chrome on Debian/Ubuntu Linux endpoints
sudo apt-get update && sudo apt-get install --only-upgrade google-chrome-stable
# Verify installed version meets the fixed baseline
google-chrome --version
# Expected: Google Chrome 150.0.7871.47 or later
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
