CVE-2026-113279: Use after free in Accessibility

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

The attacker needs to induce a user to load a crafted HTML page. The reported impact is potential arbitrary code execution inside the Chrome sandbox.

Q: Which Chrome versions need to be updated?

Google Chrome versions prior to 156.0.8078.47 are affected. Updating to 156.0.8078.47 or later addresses the affected version range described.

Q: Is exploitation described as escaping the Chrome sandbox?

No. The available information states that arbitrary code execution may occur inside the sandbox; it does not state that this issue alone provides a sandbox escape.

Published Oct 20, 2026

Updated

Chromium CVE-2026-113279: Memory corruption

Other sources

Memory corruption in Accessibility 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: Critical)

— 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

Use after free in Accessibility 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: Critical)

— NVD

Credit

Xinyang Ge

Affected Software

9 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

Microsoft Edge<156.0.4314.42

156.0.4314.42

Google Chrome<156.0.8078.47

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

Oct 5, 2026

CVE Published

12:00 AM

Data Sourced

12:00 AM

SeverityWeaknessAffected Software

Oct 20, 2026

CVE Published

via MITRE·09:01 PM

Data Sourced

via MITRE·09:01 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·02:43 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 induce a user to load a crafted HTML page. The reported impact is potential arbitrary code execution inside the Chrome sandbox.

Which Chrome versions need to be updated?

Google Chrome versions prior to 156.0.8078.47 are affected. Updating to 156.0.8078.47 or later addresses the affected version range described.

Is exploitation described as escaping the Chrome sandbox?

No. The available information states that arbitrary code execution may occur inside the sandbox; it does not state that this issue alone provides a sandbox escape.

CVE-2026-113279: Use after free in Accessibility

Other sources

Credit

Affected Software

Remediation

Event History

Parent advisories

Peer vulnerabilities

Frequently Asked Questions

What does an attacker need to exploit this issue?

Which Chrome versions need to be updated?

Is exploitation described as escaping the Chrome sandbox?

Company

Resources

Contact