---
id: "CVE-2026-126877"
page: "https://infrastack.ai/live/CVE-2026-126877"
kind: "vulnerability"
aliases: ["CVE-2026-126877"]
title: "Chrome: Dawn use-after-free lets a compromised renderer escape the sandbox"
severity: "high"
cvss: null
epss: null
exploited: false
status: "open"
category: "other"
products: []
ecosystems: []
tags: ["browsers", "chrome", "desktop", "endpoints", "other"]
not_affected_if: ["chrome-at-or-above-157.0.8103.78", "no-chrome-installed"]
published_at: "2026-11-11T23:17:16+00:00"
first_seen_at: "2026-11-11T23:29:38+00:00"
updated_at: "2026-11-11T23:32:14+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-126877", "first_seen_at": "2026-11-11T23:29:38+00:00"}]
exploit_sources: []
---

# Chrome: Dawn use-after-free lets a compromised renderer escape the sandbox

Link for people: https://infrastack.ai/live/CVE-2026-126877 (this .md is for agents)

A use-after-free bug in Dawn, Chrome's WebGPU graphics component, lets an attacker who has already compromised the renderer process run code outside the browser sandbox. The attack is triggered by a crafted HTML page, and Chromium rates it High severity.

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

## How to check

- Check the installed Chrome version (`chrome://settings/help` in the browser) and compare it with `157.0.8103.78`.
- Confirm whether Chrome updates are applied automatically on the managed devices.

## Fix

- Google Chrome: move to `157.0.8103.78` or later.

## Timeline

- 2026-11-11T23:29:38+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-126877

## From the sources

Use after free in Dawn in Google Chrome prior to 157.0.8103.78 allowed a remote attacker who had compromised the renderer process to execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: High)

---

_Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai_