EUVD-2026-33214
GHSA-qj6w-v4qp-62c8
Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Primary rating from Vendor (Chrome).
CVSS VectorVendor: Chrome
Lifecycle Timeline
4DescriptionCVE.org
Out of bounds read in WebGL in Google Chrome on Android prior to 148.0.7778.216 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: High)
AnalysisAI
Cross-origin data leakage in Google Chrome on Android (prior to 148.0.7778.216) via an out-of-bounds read in the WebGL rendering engine allows remote attackers to exfiltrate memory contents when a victim visits a crafted HTML page. The CVSS score of 4.3 (Medium) reflects a network-reachable, low-complexity attack requiring no privileges but dependent on user interaction, with confidentiality impact limited to partial disclosure. No public exploit code or CISA KEV listing has been identified at time of analysis, and an EPSS score of 0.03% (10th percentile) corroborates low active exploitation likelihood; however, the platform-specific scope (Android Chrome) and cross-origin data exposure potential make this relevant for organizations with mobile browser threat models.
Technical ContextAI
WebGL (Web Graphics Library) is a JavaScript API enabling hardware-accelerated 2D and 3D graphics rendering directly in browser contexts. The vulnerability stems from CWE-125 (Out-of-bounds Read): the WebGL implementation in Chrome's GPU process reads beyond the allocated buffer boundary during page rendering, allowing adjacent memory - potentially containing cross-origin data - to be surfaced to the calling JavaScript context. This violates the Same-Origin Policy by permitting content from one origin to read data belonging to another. The affected product is identified by CPE cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*, with the EUVD confirming the vulnerable version range as any Chrome build below 148.0.7778.216. While the tag 'Buffer Overflow' appears in threat intelligence metadata, the CWE classification (CWE-125) and description specifically indicate an out-of-bounds read, not a write - meaning code execution is not the expected primitive; information disclosure is the primary consequence.
RemediationAI
The vendor-released patch is Google Chrome version 148.0.7778.216, confirmed by both the Chrome stable channel advisory and EUVD data. Users and administrators should update Google Chrome on Android to 148.0.7778.216 or later immediately via the Google Play Store or device management tooling. The advisory is available at https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_0877304591.html. For organizations unable to patch immediately, a compensating control is to restrict access to untrusted external URLs on managed Android devices using Mobile Device Management (MDM) policies or enterprise browser configurations - note this trade-off is operationally disruptive. Disabling WebGL via Chrome enterprise policy (WebGL disabled via chrome://flags/#disable-webgl or GPO) would eliminate the attack surface entirely but will break web applications dependent on WebGL rendering. No workaround eliminates risk without functional impact; patching is the recommended resolution.
Same weakness CWE-125 – Out-of-bounds Read
View allSame technique Buffer Overflow
View allVendor StatusVendor
SUSE
Severity: Medium| Product | Status |
|---|---|
| openSUSE Leap 16.0 | Fixed |
| openSUSE Tumbleweed | Fixed |
Share
External POC / Exploit Code
Leaving vuln.today