---
id: CVE-2025-13992
title: >-
  Side-channel information leakage in Navigation and Loading in Google Chrome
  prior to 139.0.7258.66 allowed a remote attacker to bypass site isolation via
  a crafted HTML page
summary: >-
  Side-channel information leakage in Navigation and Loading in Google Chrome
  prior to 139.0.7258.66 allowed a remote attacker to bypass site isolation via
  a crafted HTML page. (Chromium security severity: Medium)
severity: medium
cvss: 4.7
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N'
cwe:
  - CWE-1300
vendor: google
product: chrome
affected:
  - chrome < 139.0.7258.66
patched:
  - chrome 139.0.7258.66
published: '2025-12-03'
updated: '2026-09-25'
sourceUpdated: '2026-09-25T23:10:00.463'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-13992'
references:
  - url: >-
      https://chromereleases.googleblog.com/2025/08/stable-channel-update-for-desktop.html
    label: chrome-cve-admin@google.com
  - url: 'https://issues.chromium.org/issues/40095391'
    label: chrome-cve-admin@google.com
tags:
  - nvd
epss: 0.00189
epssPercentile: 0.0755
ingestedAt: '2026-09-25T23:21:16.870Z'
---

## Overview

Side-channel information leakage in Navigation and Loading in Google Chrome prior to 139.0.7258.66 allowed a remote attacker to bypass site isolation via a crafted HTML page. (Chromium security severity: Medium)

## Affected

- `chrome < 139.0.7258.66`

## Remediation

Upgrade past the affected range:

- `chrome 139.0.7258.66`