How do I check whether I am affected by CVE-2026-112999?

Run chrome://version in Chrome and compare the version with 156.0.8078.47. On managed fleets, query the installed Chrome version with your device management tool.

What is the fix for CVE-2026-112999?

Update Google Chrome to 156.0.8078.47 or later and restart the browser.

Who is not affected by CVE-2026-112999?

Not affected if: already-on-156.0.8078.47-or-later.

Live › vulnerability › CVE-2026-112999

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high8.8Vendor

Chrome: use-after-free in API lets a web page run code

Google Chrome before 156.0.8078.47 has a use-after-free bug in an API that a crafted HTML page can trigger. An attacker who lures a user to the page can execute arbitrary code inside the browser sandbox.

Summary written from the sources below. Check the originals before acting.

CVSS 3.x

8.8

high

scored by 134c704f-9b21-4f2e-91b3-4a467353bcc0

known so far4 of 6

missing: primary source, exploitation

First public: Oct 20, 2026 UTC
Last modified: Oct 21, 2026
Status: open
Known exploitation: None reported
Public exploit: None on GitHub
EPSS: not scored

First seen by InfraStack 2026-10-23 21:57 UTC. All times on this page are UTC.

Why it is high, and not just CVSS

Likelihood → · Impact ↓

critical

high

medium

high

medium

low

medium

low

Exploited: No reports yet.
Needs login: No.
Needs a special setup: No.
Reachable from: internet.
Worst case: Attacker runs code inside the browser sandbox after a visit to a crafted page.
CVSS said: 8.8. The facts above say critical; we keep the sources' high until an analyst looks.

Who is affected

1 product

Know the next one before it finds you.

Add to Slack

Live › vulnerability › CVE-2026-112999

Go to dashboard

high8.8Vendor

Chrome: use-after-free in API lets a web page run code

Summary written from the sources below. Check the originals before acting.

CVSS 3.x

8.8

high

scored by 134c704f-9b21-4f2e-91b3-4a467353bcc0

known so far4 of 6

missing: primary source, exploitation

First public: Oct 20, 2026 UTC
Last modified: Oct 21, 2026
Status: open
Known exploitation: None reported
Public exploit: None on GitHub
EPSS: not scored

First seen by InfraStack 2026-10-23 21:57 UTC. All times on this page are UTC.

Why it is high, and not just CVSS

Likelihood → · Impact ↓

critical

high

medium

high

medium

low

medium

low

Exploited: No reports yet.
Needs login: No.
Needs a special setup: No.
Reachable from: internet.
Worst case: Attacker runs code inside the browser sandbox after a visit to a crafted page.
CVSS said: 8.8. The facts above say critical; we keep the sources' high until an analyst looks.

Who is affected

1 product

Know the next one before it finds you.

Add to Slack

Chrome: use-after-free in API lets a web page run code

Why it is high, and not just CVSS

Who is affected

Know the next one before it finds you.

Chrome: use-after-free in API lets a web page run code

Why it is high, and not just CVSS

Who is affected

Know the next one before it finds you.

How to check

The fix

Who had it, and when

What the sources say, verbatim

Sources