---
id: "CVE-2026-126896"
page: "https://infrastack.ai/live/CVE-2026-126896"
kind: "vulnerability"
aliases: ["CVE-2026-126896"]
title: "Chrome: V8 missing authorization lets a crafted web page bypass origin policy"
severity: "high"
cvss: null
epss: null
exploited: false
status: "open"
category: "other"
products: []
ecosystems: []
tags: ["browsers", "chrome", "end-users", "other"]
not_affected_if: ["chrome-updated"]
published_at: "2026-11-11T23:17:19+00:00"
first_seen_at: "2026-11-11T23:29:39+00:00"
updated_at: "2026-11-11T23:31:54+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-126896", "first_seen_at": "2026-11-11T23:29:39+00:00"}]
exploit_sources: []
---

# Chrome: V8 missing authorization lets a crafted web page bypass origin policy

Link for people: https://infrastack.ai/live/CVE-2026-126896 (this .md is for agents)

A missing authorization check in the V8 JavaScript engine of Google Chrome lets a remote attacker bypass web origin policy using a crafted HTML page. Chromium rates it High severity; an attacker can read data across sites a visitor is logged into.

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

## How to check

- Open Chrome, go to Settings > About Chrome, and note the version shown.
- Check whether the version is below `157.0.8103.78`.

## Fix

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

## Timeline

- 2026-11-11T23:29:39+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-126896

## From the sources

Missing authorization in V8 in Google Chrome prior to 157.0.8103.78 allowed a remote attacker to bypass web origin policy 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_