---
id: "CVE-2026-121045"
kind: "vulnerability"
aliases: ["CVE-2026-121045"]
title: "Chrome on Mac: crafted page can spoof browser UI elements"
severity: "low"
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: "2026-11-03T21:17:08+00:00"
first_seen_at: "2026-11-03T21:19:09+00:00"
updated_at: "2026-11-03T21:27:22+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-121045", "first_seen_at": "2026-11-03T21:19:09+00:00"}]
---

# Chrome on Mac: crafted page can spoof browser UI elements

Chrome on Mac before 157.0.8103.38 let a remote attacker use a crafted HTML page, combined with social engineering, to make browser UI elements appear spoofed. The description rates it Low under Chromium's security severity scale.

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

## How to check

- Check the installed Chrome version in Chrome's About page (chrome://settings/help) or `google-chrome --version` on managed Macs

## Fix

- Google Chrome on Mac: `157.0.8103.38` or later

## Timeline

- 2026-11-03T21:19:09+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-121045

## From the sources

UI misrepresentation in Browser in Google Chrome on on Mac prior to 157.0.8103.38 allowed a remote attacker leveraging social engineering to spoof UI elements via a crafted HTML page. (Chromium security severity: Low)

---

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