---
id: "CVE-2026-121197"
kind: "vulnerability"
aliases: ["CVE-2026-121197"]
title: "Chrome on Mac: out-of-bounds read lets a web page read memory"
severity: "high"
cvss: null
epss: null
exploited: false
status: "open"
category: "runtime"
products: []
ecosystems: []
tags: ["browser", "chrome", "macos", "runtime"]
not_affected_if: ["chrome-updated", "non-mac-platform"]
published_at: "2026-11-03T21:17:28+00:00"
first_seen_at: "2026-11-03T21:19:25+00:00"
updated_at: "2026-11-03T21:22:53+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-121197", "first_seen_at": "2026-11-03T21:19:25+00:00"}]
---

# Chrome on Mac: out-of-bounds read lets a web page read memory

A flaw in ANGLE, the graphics layer in Google Chrome on Mac, lets a crafted HTML page read memory outside 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 and check the version under Chrome menu > About Google Chrome, or run `google-chrome --version` on Linux; compare with `157.0.8103.38`.

## Fix

- Google Chrome on Mac: update to `157.0.8103.38` or later.

## Timeline

- 2026-11-03T21:19:25+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-121197

## From the sources

Out of bounds read in ANGLE in Google Chrome on on Mac prior to 157.0.8103.38 allowed a remote attacker to read memory outside 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_