CVE-2026-13024Network attack vector

Site-isolation bypass via invalid Navigation input

Published Jun 24, 2026 · Updated Jun 24, 2026

Input validation in Google Chrome before 149.0.7827.197 allows remote attackers to bypass site isolation via crafted HTML. The Navigation component insufficiently validates untrusted renderer input before using it across an isolation boundary; Google has restricted the underlying bug details. Exploitation requires renderer-process compromise and user interaction with the HTML, with no reported code execution outside the browser sandbox.

CVSS severity4.2
Medium
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Input validation in Google Chrome before 149.0.7827.197 allows remote attackers to bypass site isolation via crafted HTML. The Navigation component insufficiently validates untrusted renderer input before using it across an isolation boundary; Google has restricted the underlying bug details. Exploitation requires renderer-process compromise and user interaction with the HTML, with no reported code execution outside the browser sandbox.

The record

CVE
CVE-2026-13024
Published
Jun 24, 2026
Updated
Jun 24, 2026
Vendor
Go standard library
Product
Google Chrome
Classifications
CWE-20, T1211
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 24, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 24, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=149.0.7827.197 <149.0.7827.197

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Go standard library · Google Chromeversion=149.0.7827.197 <149.0.7827.197

Published CVSS scores

4.2CISA-ADPCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
T1211Exploitation for Stealth

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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