CVE-2026-9930: Out of bounds write in Dawn

Published Apr 10, 2026
·
Updated

Chromium: CVE-2026-9930 Out of bounds write in Dawn

Other sources

Out of bounds write in Dawn in Google Chrome on Mac prior to 148.0.7778.216 allowed a remote attacker to perform an out of bounds memory write via a crafted HTML page. (Chromium security severity: High)

— MITRE

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

6 affected componentsFixes available
Google Google Chrome<148.0.7778.216
Google Chrome<148.0.7778.216
148.0.7778.216
All of the following
Google Chrome<148.0.7778.216
Apple macOS
Microsoft Edge (Chromium-based)
Patch available
Microsoft Edge<148.0.3967.96

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 148.0.7778.216
  2. Upgrade

    Upgrade Chromium (Dawn) to a version that resolves this vulnerability.

    Fixed in 148.0.7778.216
  3. Upgrade

    Upgrade Google Chrome on Mac to a version that resolves this vulnerability.

    Fixed in 148.0.7778.216

Event History

Apr 10, 2026
CVE Published
12:00 AM
Data Sourced
12:00 AM
SeverityWeaknessAffected Software
May 28, 2026
CVE Published
via MITRE·10:25 PM
Data Sourced
via MITRE·10:25 PM
DescriptionWeakness
Data Sourced
via NVD·11:16 PM
DescriptionSeverityWeaknessAffected Software
May 29, 2026
Data Sourced
via Microsoft·11:20 PM
DescriptionSeverityWeaknessAffected Software
Updated
via Microsoft·11:20 PM
DescriptionAffected Software
Apr 28, 58520
Event
via FIRST·10:17 AM

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 CVE-2026-9930?

CVE-2026-9930 is a vulnerability in Google Chrome that allows an out of bounds write, potentially allowing remote attackers to modify memory through a crafted HTML page.

2

What is the severity of CVE-2026-9930?

The severity of CVE-2026-9930 is rated as medium, with a CVSS score of 4.3.

3

How do I fix CVE-2026-9930?

To fix CVE-2026-9930, update your Google Chrome or Microsoft Edge browser to the latest version, specifically to version 148.0.7778.216 or later.

4

Who is affected by CVE-2026-9930?

Users of Google Chrome on Mac prior to version 148.0.7778.216 and users of Windows versions of Microsoft Edge based on Chromium may be affected by CVE-2026-9930.

5

Can CVE-2026-9930 be exploited remotely?

Yes, CVE-2026-9930 can be exploited remotely by attackers through specially crafted HTML pages.

Company

Resources

Contact

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