CVE-2026-113087: Use after free in Actor

Q: Which Chrome installations require remediation?

Google Chrome versions earlier than 156.0.8078.47 are affected. Update to 156.0.8078.47 or a later version.

Q: What does an attacker need to exploit this issue?

A remote attacker needs to cause Chrome to process a crafted HTML page. The reported impact is arbitrary code execution inside the Chrome sandbox.

Q: Is the reported code execution outside the browser sandbox?

No. The available information states that arbitrary code execution occurs inside the sandbox; it does not state that the vulnerability escapes the sandbox.

Published Sep 7, 2026

Updated

Chromium CVE-2026-113087: Use after free

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 Actor in Google Chrome prior to 156.0.8078.47 allowed a remote attacker leveraging social engineering to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: Medium)

— NVD

Use after free in Actor in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: Medium)

— MITRE

Credit

Joshua Uphold

Affected Software

8 affected componentsFixes available

Microsoft Edge (Chromium-based)<156.0.4314.42

156.0.4314.42

Microsoft Edge<156.0.4314.42

156.0.4314.42

Google Chrome<156.0.8078.47

156.0.8078.47

Google Chrome<156.0.8078.47

debian/chromium<156.0.8078.47-1~deb12u1

156.0.8078.47-1~deb12u1

debian/chromium<156.0.8078.47-1~deb13u1

156.0.8078.47-1~deb13u1

debian/chromium<156.0.8078.47-1

156.0.8078.47-1

debian/chromium<=150.0.7871.100-1~deb12u1, <=150.0.7871.181-1~deb13u1

156.0.8078.79-1~deb12u1156.0.8078.79-1~deb13u1156.0.8078.79-1

Remediation

Recommended actions to resolve this vulnerability, in priority order.

Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 156.0.4314.42
Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 156.0.8078.47
Upgrade
Upgrade debian/chromium to a version that resolves this vulnerability.
Fixed in 156.0.8078.47-1~deb12u1
Upgrade
Upgrade debian/chromium to a version that resolves this vulnerability.
Fixed in 156.0.8078.47-1~deb13u1
Upgrade
Upgrade debian/chromium to a version that resolves this vulnerability.
Fixed in 156.0.8078.47-1
Upgrade
Upgrade debian/chromium to a version that resolves this vulnerability.
Fixed in 156.0.8078.79-1~deb12u1Fixed in 156.0.8078.79-1~deb13u1Fixed in 156.0.8078.79-1
Upgrade
Upgrade Google Chrome to a version that resolves this vulnerability.
Fixed in 156.0.8078.47

Event History

Sep 7, 2026

CVE Published

12:00 AM

Data Sourced

12:00 AM

SeverityWeaknessAffected Software

Oct 20, 2026

CVE Published

via MITRE·09:02 PM

Data Sourced

via MITRE·09:02 PM

DescriptionWeakness

Data Sourced

via NVD·10:19 PM

DescriptionSeverityWeaknessAffected Software

Data Sourced

via OSV·10:19 PM

DescriptionSeverityAffected Software

Oct 23, 2026

Data Sourced

via Microsoft·02:39 AM

DescriptionSeverityWeaknessAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

Which Chrome installations require remediation?

Google Chrome versions earlier than 156.0.8078.47 are affected. Update to 156.0.8078.47 or a later version.

What does an attacker need to exploit this issue?

A remote attacker needs to cause Chrome to process a crafted HTML page. The reported impact is arbitrary code execution inside the Chrome sandbox.

Is the reported code execution outside the browser sandbox?

No. The available information states that arbitrary code execution occurs inside the sandbox; it does not state that the vulnerability escapes the sandbox.

CVE-2026-113087: Use after free in Actor

Other sources

Credit

Affected Software

Remediation

Event History

Parent advisories

Peer vulnerabilities

Frequently Asked Questions

Which Chrome installations require remediation?

What does an attacker need to exploit this issue?

Is the reported code execution outside the browser sandbox?

Company

Resources

Contact