---
id: "CVE-2026-121095"
kind: "vulnerability"
aliases: ["CVE-2026-121095"]
title: "Chrome: uninitialized WebGL memory lets a web page read data"
severity: "high"
cvss: null
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["browsers", "chrome", "desktop", "linux", "macos", "package", "windows"]
not_affected_if: ["chrome-up-to-date"]
published_at: "2026-11-03T21:17:15+00:00"
first_seen_at: "2026-11-03T21:19:13+00:00"
updated_at: "2026-11-03T21:25:26+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-121095", "first_seen_at": "2026-11-03T21:19:13+00:00"}]
---

# Chrome: uninitialized WebGL memory lets a web page read data

Google Chrome before 157.0.8103.38 has an uninitialized resource in WebGL that lets a remote attacker read memory outside the browser sandbox through a crafted HTML page. Chromium rates it High severity.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the Chrome version under Chrome menu > Help > About Google Chrome, or run `google-chrome --version` on Linux.
- Compare the installed version against `157.0.8103.38`.

## Fix

- Google Chrome: move to `157.0.8103.38` or later.

## Timeline

- 2026-11-03T21:19:13+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-121095

## From the sources

Uninitialized resource in WebGL in Google Chrome prior to 157.0.8103.38 allowed a remote attacker to read memory outside the sandbox via a crafted HTML page. (Chromium security severity: High)

---

_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_