CVE-2026-110921: Use after free in V8 on 2026-10-04

Published Oct 15, 2026
·
Updated

Chromium CVE-2026-110921: Use after free in V8

Other sources

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

Use after free in V8 in Google Chrome prior to 155.0.8059.84 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)

— MITRE

Affected Software

4 affected componentsFixes available
Google Chrome<155.0.8059.84
Microsoft Edge<152.0.4191.137
152.0.4191.137
Microsoft Edge<155.0.4283.62
155.0.4283.62
debian/chromium<=150.0.7871.100-1~deb12u1, <=150.0.7871.181-1~deb13u1
156.0.8078.73-1~deb12u1156.0.8078.73-1~deb13u1156.0.8078.47-1156.0.8078.79-1

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 152.0.4191.137
  2. Upgrade

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

    Fixed in 155.0.4283.62
  3. Upgrade

    Upgrade debian/chromium to a version that resolves this vulnerability.

    Fixed in 156.0.8078.73-1~deb12u1Fixed in 156.0.8078.73-1~deb13u1Fixed in 156.0.8078.47-1Fixed in 156.0.8078.79-1
  4. Upgrade

    Upgrade Google Chrome to a version that resolves this vulnerability.

    Fixed in 155.0.8059.84

Event History

Oct 15, 2026
CVE Published
via MITRE·10:04 PM
Data Sourced
via MITRE·10:04 PM
DescriptionWeakness
Data Sourced
via NVD·10:19 PM
DescriptionSeverityWeaknessAffected Software
Oct 20, 2026
Data Sourced
12:00 AM
SeverityWeakness
Oct 26, 2026
Data Sourced
via Microsoft·02:00 PM
DescriptionSeverityWeaknessAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

1

Which Chrome versions are affected?

Google Chrome versions prior to 155.0.8059.84 are affected. Updating to 155.0.8059.84 or later addresses the affected version range described.

2

What does an attacker need to exploit this issue?

An attacker needs to cause a user to process a crafted HTML page remotely. Successful exploitation can execute arbitrary code inside the Chrome sandbox.

3

Are users exposed through ordinary web browsing?

Yes. The issue is triggered by crafted HTML content, so users who visit attacker-controlled or otherwise malicious web pages could be exposed.

Company

Resources

Contact

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