CVE-2026-113010: Incomplete cleanup in Extensions

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

The attacker needs to cause Chrome to process a crafted HTML page. The issue can be triggered remotely through web content.

Q: What is the security boundary affected by the vulnerability?

The disclosed impact is reading memory inside Chrome's sandbox. The provided information does not indicate that the issue enables escape from the sandbox or code execution.

Q: Which Chrome versions need updating?

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

Published May 30, 2026

Updated

Chromium CVE-2026-113010: Out of bounds read

Other sources

Incomplete cleanup in Extensions in Google Chrome prior to 156.0.8078.47 allowed a remote attacker who had compromised the renderer process to bypass site isolation via a crafted HTML page. (Chromium security severity: Medium)

— NVD

Out of bounds read in Extensions in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to read memory inside the sandbox via a crafted HTML page. (Chromium security severity: Medium)

— 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

8 affected componentsFixes available

Google Chrome<156.0.8078.47

Microsoft Edge (Chromium-based)<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

May 30, 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·10:18 PM

DescriptionSeverityWeaknessAffected Software

Data Sourced

via OSV·10:18 PM

DescriptionSeverityAffected Software

Oct 23, 2026

Data Sourced

via Microsoft·02:29 AM

DescriptionSeverityWeaknessAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

What does an attacker need to exploit this issue?

The attacker needs to cause Chrome to process a crafted HTML page. The issue can be triggered remotely through web content.

What is the security boundary affected by the vulnerability?

The disclosed impact is reading memory inside Chrome's sandbox. The provided information does not indicate that the issue enables escape from the sandbox or code execution.

Which Chrome versions need updating?

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

CVE-2026-113010: Incomplete cleanup in Extensions

Other sources

Credit

Affected Software

Remediation

Event History

Parent advisories

Peer vulnerabilities

Frequently Asked Questions

What does an attacker need to exploit this issue?

What is the security boundary affected by the vulnerability?

Which Chrome versions need updating?

Company

Resources

Contact