---
id: "CVE-2026-121175"
kind: "vulnerability"
aliases: ["CVE-2026-121175"]
title: "Chrome: crafted web page can bypass site isolation protections"
severity: "low"
cvss: null
epss: null
exploited: false
status: "open"
category: "runtime"
products: []
ecosystems: []
tags: ["browsers", "chrome", "desktop", "runtime"]
not_affected_if: ["chrome-157.0.8103.38-or-later"]
published_at: "2026-11-03T21:17:25+00:00"
first_seen_at: "2026-11-03T21:19:24+00:00"
updated_at: "2026-11-03T21:23:13+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-121175", "first_seen_at": "2026-11-03T21:19:24+00:00"}]
---

# Chrome: crafted web page can bypass site isolation protections

Google Chrome before 157.0.8103.38 has an improper resource exposure flaw in its Opaque Response Blocking (ORB) component. A remote attacker can use a crafted HTML page to bypass site isolation and read data from other sites.

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

## How to check

- Check the installed Chrome version at chrome://settings/help and compare it with `157.0.8103.38`

## Fix

- Google Chrome: move to `157.0.8103.38` or later

## Timeline

- 2026-11-03T21:19:24+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-121175

## From the sources

Improper resource exposure in ORB in Google Chrome prior to 157.0.8103.38 allowed a remote attacker to bypass site isolation via a crafted HTML page. (Chromium security severity: Low)

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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_