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HIGH severity

CVE-2026-113128 — CHROME

HIGH

CVE-2026-113128 is a high-severity (CVSS 8.8) CWE-862 vulnerability in google chrome. A fix is available — see the affected versions and patch details below.

Missing authorization in Animation in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to bypass web origin policy via a crafted HTML page. (Chromium security severity: Medium)

Published
Updated
Affected
1 product
Patched
See advisory
Exploits
None indexed
Exploitation data as of Oct 22, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
0.3%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs22th percentile — riskier than 22% of all scored CVEsHighest risk

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

CVE-2026-113128 by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.

Where this sits among everything scored

Of 394,803 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Counts from FIRST.org, log-scaled.

Description

Missing authorization in Animation in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to bypass web origin policy via a crafted HTML page. (Chromium security severity: Medium)

Affected Products

1 product · 1 configurations
Application
chromegoogle
< 156.0.8078.47
range

Detection & mitigation playbook

Vendor / appliance

  1. Detect

    Inventory every google chrome deployment and check each version against the affected-products list above.

  2. Fix

    Apply the google chrome security patch or hotfix for CVE-2026-113128 on the affected version, following the vendor advisory for your exact build.

  3. Workarounds

    Put an independent control in front of the weakness: restrict the affected endpoint or interface to trusted networks, require an additional authentication factor or proxy-level check, and invalidate existing sessions and credentials in case the flaw has already been used. Alongside that, restrict the management interface to trusted networks and apply the vendor's recommended configuration mitigations.

Frequently Asked Questions

Missing authorization in Animation in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to bypass web origin policy via a crafted HTML page. (Chromium security severity: Medium)
O3 Security · Runtime Protection

Is CVE-2026-113128 being exploited in your environment?

Detect and block the exploit chain at execution, on systems you cannot patch yet.

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CVE-2026-113128: CHROME (High 8.8)