CVE-2026-9882 Google CVE debrief

Who should care

Organizations with Chrome deployments, security teams managing browser security posture, web application developers concerned with cross-origin isolation guarantees, and endpoint administrators responsible for patch management

Technical summary

CVE-2026-9882 is an integer overflow vulnerability in ANGLE (Almost Native Graphics Layer Engine), the graphics translation layer used by Google Chrome. The flaw exists in Chrome versions prior to 148.0.7778.216 and enables remote attackers to leak cross-origin data through a crafted HTML page. ANGLE translates OpenGL ES API calls to native graphics APIs (Direct3D, Metal, Vulkan, or desktop OpenGL), and an integer overflow in this component can lead to memory corruption or improper bounds handling that exposes data across origin boundaries. The vulnerability is rated Critical by Chromium security standards, indicating severe impact with straightforward exploitation potential. Cross-origin data leakage can expose sensitive session tokens, authentication credentials, or private user information to malicious websites.

Defensive priority

critical

Recommended defensive actions

• Upgrade Google Chrome to version 148.0.7778.216 or later to remediate this integer overflow vulnerability in ANGLE
• Review browser update policies to ensure automatic updates are enabled for Chrome installations
• Monitor for unexpected cross-origin data access attempts in web application logs
• Assess whether any internal applications rely on specific Chrome versions and prioritize patching those endpoints
• Consider implementing network segmentation for high-risk browsing activities until patching is complete

Evidence notes

CVE published 2026-05-28; modified 2026-05-29. Chromium security severity rated Critical. Affects Google Chrome versions prior to 148.0.7778.216. Weakness classified as CWE-472 (External Control of Assumed-Immutable Web Parameter). No KEV listing at time of debrief.

Official resources