CVE-2026-113127: Confused deputy in Browser

Q: What must an attacker do to exploit this issue?

An attacker would need to cause Chrome to process a crafted HTML page, such as by persuading a user to visit a malicious website or open HTML content under attacker control.

Q: What is the security impact if exploitation succeeds?

The issue may allow a remote attacker to execute arbitrary code inside Chrome's sandbox. The provided information does not indicate that sandbox escape or host-level code execution is possible.

Q: Which Chrome versions should be remediated?

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

Published Apr 11, 2026

Updated

Chromium CVE-2026-113127: Memory corruption

Other sources

Confused deputy in Browser in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to bypass web origin policy into a privileged page via a crafted HTML page. (Chromium security severity: Medium)

— NVD

Memory corruption in Browser in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to potentially execute arbitrary code 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

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

Apr 11, 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·02:32 AM

DescriptionSeverityWeaknessAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

What must an attacker do to exploit this issue?

An attacker would need to cause Chrome to process a crafted HTML page, such as by persuading a user to visit a malicious website or open HTML content under attacker control.

What is the security impact if exploitation succeeds?

The issue may allow a remote attacker to execute arbitrary code inside Chrome's sandbox. The provided information does not indicate that sandbox escape or host-level code execution is possible.

Which Chrome versions should be remediated?

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

CVE-2026-113127: Confused deputy in Browser

Other sources

Credit

Affected Software

Remediation

Event History

Parent advisories

Peer vulnerabilities

Frequently Asked Questions

What must an attacker do to exploit this issue?

What is the security impact if exploitation succeeds?

Which Chrome versions should be remediated?

Company

Resources

Contact