CVE-2026-113153: Missing authorization in SiteIsolation

Published Sep 14, 2026
·
Updated

Chromium CVE-2026-113153: Memory corruption

Other sources

Memory corruption in SiteIsolation 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

Missing authorization in SiteIsolation 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

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

Hoyong Jin

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.

  1. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 156.0.4314.42
  2. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 156.0.8078.47
  3. Upgrade

    Upgrade debian/chromium to a version that resolves this vulnerability.

    Fixed in 156.0.8078.47-1~deb12u1
  4. Upgrade

    Upgrade debian/chromium to a version that resolves this vulnerability.

    Fixed in 156.0.8078.47-1~deb13u1
  5. Upgrade

    Upgrade debian/chromium to a version that resolves this vulnerability.

    Fixed in 156.0.8078.47-1
  6. 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
  7. Upgrade

    Upgrade Google Chrome to a version that resolves this vulnerability.

    Fixed in 156.0.8078.47
  8. Upgrade

    Upgrade Microsoft Edge (Chromium-based) to a version that resolves this vulnerability.

    Fixed in 156.0.8078.47

Event History

Sep 14, 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·02:35 AM
DescriptionSeverityWeaknessAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

1

Who is exposed to this issue?

Users of Google Chrome versions earlier than 156.0.8078.47 are potentially exposed when they visit a crafted HTML page.

2

What does an attacker need to exploit it?

The issue can be triggered remotely through a crafted HTML page. The described impact is potential arbitrary code execution inside the Chrome sandbox.

3

How can I remediate the issue?

Update Google Chrome to version 156.0.8078.47 or later.

Company

Resources

Contact

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