CVE-2026-78899: Use after free in V8

Published Jul 29, 2026
·
Updated

Chromium: CVE-2026-78899 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 152.0.7977.65 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)

— NVD

Credit

Jihyeon Jeong (Compsec Lab, Seoul National University / Research Intern)

Affected Software

5 affected componentsFixes available
Google V8<152.0.7977.65
Google Chrome<152.0.7977.64
152.0.7977.64
Google Chrome<152.0.7977.65
Microsoft Edge<152.0.4191.53
Microsoft Edge (Chromium-based)<152.0.4191.53
152.0.4191.53

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 152.0.7977.64
  2. Upgrade

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

    Fixed in 152.0.4191.53
  3. Upgrade

    Upgrade Chromium / Google Chrome (V8) to a version that resolves this vulnerability.

    Fixed in 152.0.7977.65Patch CVE-2026-78899

Event History

Jul 29, 2026
CVE Published
12:00 AM
Data Sourced
12:00 AM
SeverityWeaknessAffected Software
Aug 25, 2026
CVE Published
via MITRE·08:10 PM
Data Sourced
via MITRE·08:10 PM
DescriptionWeakness
Data Sourced
via NVD·09:17 PM
DescriptionSeverityWeaknessAffected Software
Aug 28, 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.

Frequently Asked Questions

1

What does an attacker need to exploit this issue?

The attacker needs to induce a user to load a crafted HTML page. Successful exploitation permits arbitrary code execution inside the Chrome sandbox.

2

Which versions should be remediated?

Google Chrome versions earlier than 152.0.7977.65 are affected according to the available information. Update Chrome to 152.0.7977.65 or later.

3

Is this a sandbox escape?

No. The described impact is arbitrary code execution inside the sandbox; the provided information does not indicate that an attacker can escape the sandbox.

Company

Resources

Contact

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