---
id: "CVE-2026-126875"
page: "https://infrastack.ai/live/CVE-2026-126875"
kind: "vulnerability"
aliases: ["CVE-2026-126875"]
title: "Chrome: V8 flaw lets crafted web page bypass origin policy"
severity: "high"
cvss: null
epss: null
exploited: false
status: "open"
category: "other"
products: []
ecosystems: []
tags: ["browser", "chrome", "desktop", "mobile", "other"]
not_affected_if: ["chrome-updated"]
published_at: "2026-11-11T23:17:16+00:00"
first_seen_at: "2026-11-11T23:29:38+00:00"
updated_at: "2026-11-11T23:32:17+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-126875", "first_seen_at": "2026-11-11T23:29:38+00:00"}]
exploit_sources: []
---

# Chrome: V8 flaw lets crafted web page bypass origin policy

Link for people: https://infrastack.ai/live/CVE-2026-126875 (this .md is for agents)

A missing authorization check in V8, Chrome's JavaScript engine, lets a crafted HTML page bypass web origin policy. An attacker who lures a user to that page can read or act on content from other sites.

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

## How to check

- Open Chrome and check the version under Settings > About Chrome; the version string is shown there.
- Compare it against `157.0.8103.78`; anything older is listed as prior to the fix.

## Fix

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

## Timeline

- 2026-11-11T23:29:38+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-126875

## 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_