CVE-2026-18003: Inappropriate implementation in Chrome for iOS

Published Jun 9, 2026
·
Updated

Chromium: CVE-2026-18003 Inappropriate implementation in Chrome for iOS

Other sources

Inappropriate implementation in Chrome for iOS in Google Chrome on iOS prior to 151.0.7922.72 allowed a remote attacker to perform UI spoofing via a crafted HTML page. (Chromium security severity: Low)

— NVD

This CVE was assigned by Chrome.  Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability. Please see Google Chrome Releases for more information.

— Microsoft

Credit

Google

Affected Software

4 affected componentsFixes available
Google Google Chrome on iOS<151.0.7922.72
Google Chrome<151.0.7922.71
151.0.7922.71
Microsoft Edge (Chromium-based)<151.0.4129.59
151.0.4129.59
Microsoft Edge<151.0.4129.59

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 151.0.7922.71
  2. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 151.0.4129.59
  3. Upgrade

    Upgrade Google Chrome for iOS to a version that resolves this vulnerability.

    Fixed in 151.0.7922.72

Event History

Jun 9, 2026
CVE Published
12:00 AM
Data Sourced
12:00 AM
SeverityWeaknessAffected Software
Jul 30, 2026
CVE Published
via MITRE·12:26 AM
Data Sourced
via MITRE·12:26 AM
DescriptionWeakness
Data Sourced
via NVD·01:17 AM
DescriptionSeverityWeakness
Jul 31, 2026
Data Sourced
via Microsoft·02:00 PM
DescriptionSeverityWeaknessAffected Software
Updated
via Microsoft·02:00 PM
DescriptionAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

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Frequently Asked Questions

1

What is the severity of CVE-2026-18003?

CVE-2026-18003 has a medium severity rating of 4.3 according to the CVSS 3.1 metrics.

2

How do I fix CVE-2026-18003?

To fix CVE-2026-18003, update Google Chrome on iOS to version 151.0.7922.72 or later.

3

What type of attack does CVE-2026-18003 involve?

CVE-2026-18003 involves a UI spoofing attack that can be executed using a crafted HTML page.

4

Which software is affected by CVE-2026-18003?

CVE-2026-18003 affects Google Chrome on iOS and Microsoft Edge based on Chromium.

5

When was CVE-2026-18003 published?

CVE-2026-18003 was published on June 9, 2026.

Company

Resources

Contact

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