---
id: "CVE-2026-121090"
kind: "vulnerability"
aliases: ["CVE-2026-121090"]
title: "Chrome on iOS: navigation flaw lets a compromised renderer escape sandbox"
severity: "high"
cvss: null
epss: null
exploited: false
status: "open"
category: "other"
products: []
ecosystems: []
tags: ["chrome", "ios", "mobile", "other"]
not_affected_if: ["chrome-updated", "non-ios-platforms"]
published_at: "2026-11-03T21:17:14+00:00"
first_seen_at: "2026-11-03T21:19:13+00:00"
updated_at: "2026-11-03T21:25:31+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-121090", "first_seen_at": "2026-11-03T21:19:13+00:00"}]
---

# Chrome on iOS: navigation flaw lets a compromised renderer escape sandbox

Google Chrome on iOS before 157.0.8103.38 has an improper privilege management flaw in its navigation code. A remote attacker who has already compromised the renderer process could potentially run arbitrary code outside the sandbox via a crafted HTML page.

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

## How to check

- Open Chrome on the iPhone or iPad and check the version under Chrome > Settings > Google Chrome > About Chrome, or confirm it is at least `157.0.8103.38`.

## Fix

- Google Chrome on iOS: move to `157.0.8103.38` or later.

## Timeline

- 2026-11-03T21:19:13+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-121090

## From the sources

Improper privilege management in Navigation in Google Chrome on on iOS prior to 157.0.8103.38 allowed a remote attacker who had compromised the renderer process to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: High)

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