---
id: "CVE-2026-118304"
kind: "vulnerability"
aliases: ["CVE-2026-118304"]
title: "Chrome: crafted SVG input lets a web page run code in sandbox"
severity: "high"
cvss: null
epss: null
exploited: false
status: "open"
category: "runtime"
products: []
ecosystems: []
tags: ["browsers", "chrome", "endpoints", "runtime"]
not_affected_if: ["chrome-156-or-later", "other-browser-only"]
published_at: "2026-10-27T23:16:58+00:00"
first_seen_at: "2026-10-27T23:29:42+00:00"
updated_at: "2026-10-27T23:33:25+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-118304", "first_seen_at": "2026-10-27T23:29:42+00:00"}]
---

# Chrome: crafted SVG input lets a web page run code in sandbox

Google Chrome before 156.0.8078.73 mishandles input validation in its SVG code, so a crafted HTML page can make a remote attacker run arbitrary code inside the browser sandbox. Chromium rates the flaw High severity.

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

## How to check

- Open chrome://version in the browser and read the version; it should be `156.0.8078.73` or later.
- Run `google-chrome --version` on Linux or check the installed version on managed fleets.

## Fix

- Update Google Chrome to `156.0.8078.73` or later.
- Relaunch the browser after the update so the new version takes effect.

## Timeline

- 2026-10-27T23:29:42+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-118304

## From the sources

Improper input validation in SVG in Google Chrome prior to 156.0.8078.73 allowed a remote attacker to potentially execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)

---

_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_