---
id: "CVE-2026-126889"
page: "https://infrastack.ai/live/CVE-2026-126889"
kind: "vulnerability"
aliases: ["CVE-2026-126889"]
title: "Chrome: V8 off-by-one lets a crafted web page run code"
severity: "high"
cvss: null
epss: null
exploited: false
status: "open"
category: "other"
products: []
ecosystems: []
tags: ["browsers", "chrome", "other", "v8"]
not_affected_if: ["chrome-updated"]
published_at: "2026-11-11T23:17:18+00:00"
first_seen_at: "2026-11-11T23:29:39+00:00"
updated_at: "2026-11-11T23:32:02+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-126889", "first_seen_at": "2026-11-11T23:29:39+00:00"}]
exploit_sources: []
---

# Chrome: V8 off-by-one lets a crafted web page run code

Link for people: https://infrastack.ai/live/CVE-2026-126889 (this .md is for agents)

An off-by-one error in the V8 JavaScript engine of Google Chrome lets a remote attacker run arbitrary code inside the browser sandbox when the victim opens 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

- Open Chrome and check the version under Settings > About Chrome, or run `chrome://version` in the address bar.
- Compare the installed version with `157.0.8103.78`; anything older is exposed.

## 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-2026-126889

## From the sources

Off-by-one error in V8 in Google Chrome prior to 157.0.8103.78 allowed a remote attacker to potentially execute arbitrary code inside 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_