CVE-2026-8558: Out of bounds write in Fonts

Published Apr 16, 2026
·
Updated

Chromium: CVE-2026-8558 Out of bounds write in Fonts

Other sources

Out of bounds write in Fonts in Google Chrome prior to 148.0.7778.168 allowed a remote attacker to execute arbitrary code inside a sandbox 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

Matej Smycka

Affected Software

4 affected componentsFixes available
Google Chrome<148.0.7778.167
148.0.7778.167
Microsoft Edge (Chromium-based)
Microsoft Edge<148.0.3967.70
Google Chrome<148.0.7778.168

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 148.0.7778.167
  2. Upgrade

    Upgrade Google Chrome/Chromium (Fonts) to a version that resolves this vulnerability.

    Fixed in 148.0.7778.168

Event History

Apr 16, 2026
CVE Published
12:00 AM
Data Sourced
12:00 AM
SeverityWeaknessAffected Software
May 14, 2026
CVE Published
via MITRE·07:52 PM
Data Sourced
via MITRE·07:52 PM
DescriptionWeakness
Data Sourced
via NVD·08:17 PM
DescriptionSeverityWeaknessAffected Software
May 16, 2026
Data Sourced
via Microsoft·12:21 AM
DescriptionSeverityWeaknessAffected Software
Updated
via Microsoft·12:21 AM
DescriptionAffected Software
Jun 29, 58424
Event
via FIRST·04:04 PM

Parent advisories

This vulnerability appears in the following advisories.

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Frequently Asked Questions

1

What is the severity of CVE-2026-8558?

CVE-2026-8558 has a high severity rating due to its potential for arbitrary code execution.

2

How do I fix CVE-2026-8558?

To fix CVE-2026-8558, update your Google Chrome to version 148.0.7778.168 or later.

3

What does CVE-2026-8558 allow an attacker to do?

CVE-2026-8558 allows a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page.

4

Which versions of Google Chrome are affected by CVE-2026-8558?

Google Chrome versions prior to 148.0.7778.168 are affected by CVE-2026-8558.

5

Is CVE-2026-8558 specific to any operating system?

CVE-2026-8558 affects Google Chrome on all supported operating systems that run the affected versions.

Contact

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