---
id: "CVE-2026-126854"
page: "https://infrastack.ai/live/CVE-2026-126854"
kind: "vulnerability"
aliases: ["CVE-2026-126854"]
title: "Chrome: incorrect authorization in Layout leaks cross-origin data via HTML"
severity: "high"
cvss: null
epss: null
exploited: false
status: "open"
category: "runtime"
products: []
ecosystems: []
tags: ["browser", "chrome", "desktop", "linux", "macos", "runtime", "windows"]
not_affected_if: ["chrome-updated"]
published_at: "2026-11-11T23:17:13+00:00"
first_seen_at: "2026-11-11T23:29:36+00:00"
updated_at: "2026-11-11T23:33:36+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-126854", "first_seen_at": "2026-11-11T23:29:36+00:00"}]
exploit_sources: []
---

# Chrome: incorrect authorization in Layout leaks cross-origin data via HTML

Link for people: https://infrastack.ai/live/CVE-2026-126854 (this .md is for agents)

Google Chrome before 157.0.8103.78 has an authorization flaw in its Layout component. A crafted HTML page can make a remote attacker read data from other websites.

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

## How to check

- Open Chrome, go to `chrome://settings/help` and check the version; it should be `157.0.8103.78` or later.
- On managed machines, check the installed Chrome version with your device management tool.

## Fix

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

## Timeline

- 2026-11-11T23:29:36+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-126854

## From the sources

Incorrect authorization in Layout in Google Chrome prior to 157.0.8103.78 allowed a remote attacker to obtain cross-origin data 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_