---
id: "CVE-2026-119270"
kind: "vulnerability"
aliases: ["CVE-2026-119270"]
title: "Chrome: CacheStorage input validation flaw lets crafted page run code"
severity: "high"
cvss: null
epss: null
exploited: false
status: "open"
category: "runtime"
products: []
ecosystems: []
tags: ["browser", "chrome", "desktop", "mobile", "runtime"]
not_affected_if: ["up-to-date-chrome"]
published_at: "2026-10-30T01:16:45+00:00"
first_seen_at: "2026-10-30T01:27:58+00:00"
updated_at: "2026-10-30T01:29:50+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-119270", "first_seen_at": "2026-10-30T01:27:58+00:00"}]
---

# Chrome: CacheStorage input validation flaw lets crafted page run code

Google Chrome before 156.0.8078.79 mishandles input in CacheStorage, so a crafted HTML page can potentially execute code inside the browser sandbox. Chromium rates it High severity.

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

## How to check

- Open Chrome's version via `chrome://settings/help` and compare it with `156.0.8078.79`

## Fix

- Google Chrome: `156.0.8078.79`

## Timeline

- 2026-10-30T01:27:58+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-119270

## From the sources

Improper input validation in CacheStorage in Google Chrome prior to 156.0.8078.79 allowed a remote attacker to potentially execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)

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