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ChromeWeb browser · Google

CVE-2026-12467

HIGH · 8.3 CVSS v3.1 Published 2026-06-17
Fix available
A fix is available. Upgrade to 149.0.7827.155 or later.
See remediation →
90/100
Remediation priority · Urgent
Remotely reachable No privileges

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
Use after free in Extensions in Google Chrome prior to 149.0.7827.155 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: High)

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

A use-after-free vulnerability in Chrome's Extensions component prior to version 149.0.7827.155 allows an attacker who has already compromised the renderer process to potentially escape the sandbox via a crafted HTML page. The attacker must first gain code execution in the renderer, then exploit the UAF to break out of the sandbox isolation.

MitigationUpdate Google Chrome to version 149.0.7827.155 or later. In enterprise environments, use enterprise deployment tools (Group Policy, SCCM, etc.) to ensure consistent patching across all endpoints.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
ChromeWeb browser
Affected:< 149.0.7827.155

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
High
Privileges
None
User interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Check if Google Chrome is installed
    On Windows, check for Chrome in Program Files or via Registry key HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Google Chrome. On macOS, check /Applications/Google Chrome.app. On Linux, check /usr/bin/google-chrome or via package manager.
    Affected if Chrome is not installed on the system
  2. Determine installed Chrome version
    Open Chrome, navigate to chrome://settings/help, or run 'google-chrome --version' on Linux/Mac, or check the version in the Windows Registry under the Uninstall key.
    Affected if Unable to retrieve the version number
  3. Compare version against affected range
    Compare your installed version number to 149.0.7827.155. Any version lower than 149.0.7827.155 (e.g., 149.0.7827.100, 148.x.x.x, etc.) is within the vulnerable range.
    Affected if Installed version is less than 149.0.7827.155 (e.g., 148.0.2345.67)
  4. Confirm Chrome is used as the default browser or has extensions
    Check if Chrome is set as the default browser or if any extensions are installed and enabled. This vulnerability affects the Extensions component, so Chrome must be actively used.
    Affected if Chrome is installed but never launched or has no extensions enabled

You are affected if Google Chrome is installed and the version is below 149.0.7827.155, and Chrome is actively used with extensions enabled.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to 149.0.7827.155 or later
Fixed in 149.0.7827.155
Interim mitigation

Update Google Chrome to version 149.0.7827.155 or later. In enterprise environments, use enterprise deployment tools (Group Policy, SCCM, etc.) to ensure consistent patching across all endpoints.

Recommended fix High confidence

149.0.7827.155 or later

  1. Open Google Chrome and navigate to Help > About Google Chrome to check the current version
  2. If the version is below 149.0.7827.155, click 'Update Google Chrome' to download and install the latest version
  3. Restart Google Chrome to complete the update
  4. Alternatively, ensure Chrome is set to automatically update by going to Settings > About Chrome and enabling automatic updates

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Chrome Scoped from the published advisory
  • Consultation1.0 h
  • Implementation2.0 h
  • Testing1.0 h
  • Review / QA1.0 h
5.0 hours of engineering $890
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,424.

Scan for this in your stack

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dbcve dependency scanner

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2026-12467 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data