CVE-2026-113137: Missing authorization in Extensions

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

The issue can be triggered remotely by serving or persuading a user to open a crafted HTML page. No local access or pre-existing account access is described.

Q: What data could be exposed if exploitation succeeds?

Successful exploitation could allow an attacker to read memory within the Chrome sandbox. The provided information does not state that the attacker can escape the sandbox or execute code outside it.

Q: Which Chrome versions need remediation?

Google Chrome versions earlier than 156.0.8078.47 are affected. Updating to 156.0.8078.47 or later remediates the affected version range described.

Published May 16, 2026

Updated

Chromium CVE-2026-113137: Memory corruption

Other sources

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

— MITRE

Missing authorization in Extensions in Google Chrome prior to 156.0.8078.47 allowed a remote attacker leveraging social engineering to obtain sensitive information via a crafted Chrome extension. (Chromium security severity: Medium)

— NVD

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

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

May 16, 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·02:33 AM

DescriptionSeverityWeaknessAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

What access does an attacker need to exploit this issue?

The issue can be triggered remotely by serving or persuading a user to open a crafted HTML page. No local access or pre-existing account access is described.

What data could be exposed if exploitation succeeds?

Successful exploitation could allow an attacker to read memory within the Chrome sandbox. The provided information does not state that the attacker can escape the sandbox or execute code outside it.

Which Chrome versions need remediation?

Google Chrome versions earlier than 156.0.8078.47 are affected. Updating to 156.0.8078.47 or later remediates the affected version range described.

CVE-2026-113137: Missing authorization in Extensions

Other sources

Credit

Affected Software

Remediation

Event History

Parent advisories

Peer vulnerabilities

Frequently Asked Questions

What access does an attacker need to exploit this issue?

What data could be exposed if exploitation succeeds?

Which Chrome versions need remediation?

Company

Resources

Contact