ChromeWeb browser · Google
CVE-2026-3920
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 · uneditedOut of bounds memory access in WebML in Google Chrome prior to 146.0.7680.71 allowed a remote attacker to potentially exploit heap corruption 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 confidenceOut of bounds memory access in Google Chrome's WebML (Web Machine Learning) implementation prior to version 146.0.7680.71 allows a remote attacker to exploit heap corruption via a specially crafted HTML page. This is a memory safety vulnerability in the browser's ML runtime that could be leveraged for code execution.
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
< 146.0.7680.71CVSS 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
- Low
- Privileges
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/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 checksWork through these to decide whether this CVE applies to you.
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Determine installed Chrome versionOpen chrome://version in the address bar or run 'google-chrome --version' from command line. The version number appears next to 'Google Chrome' or in the command output.Affected if Version is less than 146.0.7680.71 (e.g., 146.0.7680.70 or earlier)
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Verify WebML API availabilityOpen Developer Tools (F12), go to Console, and enter 'console.log(navigator.ml)' or 'console.log(window.WebNN)' to check if the WebML or WebNN API is exposed in the browser.Affected if The API object exists (navigator.ml or window.WebNN is not undefined) - this indicates WebML is enabled and the vulnerability is reachable
A user is affected if their Chrome version is below 146.0.7680.71 AND the WebML feature is accessible in their browser context.
Generated from the published advisory. Verify against your own configuration.
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 · scoped146.0.7680.71
Update Google Chrome to version 146.0.7680.71 or later to remediate this vulnerability. Organizations should ensure standard patch management processes deploy browser updates promptly.
Chrome 146.0.7680.71 or later
- Open Chrome and navigate to Settings > Help > About Google Chrome to check current version
- If the version is below 146.0.7680.71, Chrome will automatically check for updates
- Click 'Update Google Chrome' if an update is available
- Restart Chrome to complete the update
- Verify the version is now 146.0.7680.71 or later via Settings > Help > About Google Chrome
Generated from the published advisory — verify against the referenced sources before acting.
Fix this in Chrome
Scoped from the published advisory
- Consultation2.0 h
- Implementation4.0 h
- Testing2.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,848.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-3920 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2026-3920 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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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.
- 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