ChromeWeb browser · Google
CVE-2026-4458
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 · uneditedUse after free in Extensions in Google Chrome prior to 146.0.7680.153 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted Chrome Extension. (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 confidenceA use-after-free vulnerability exists in the Chrome Extensions component prior to version 146.0.7680.153. An attacker must convince a user to install a malicious Chrome extension, which can then trigger a use-after-free condition leading to potential heap corruption. The vulnerability has high severity rating due to the potential 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
< 146.0.7680.153CVSS 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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Check Google Chrome versionOpen chrome://settings/help in the browser address bar, or run 'google-chrome --version' (Linux) or 'chrome --version' (Windows) from command lineAffected if The displayed version is lower than 146.0.7680.153
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Verify Extensions are enabledNavigate to chrome://extensions and confirm the 'Developer mode' toggle or extension enable/disable controls are accessible and extensions can be installedAffected if Extensions feature is enabled (this is the default state) and the Chrome version is vulnerable
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Review installed extensionsNavigate to chrome://extensions and examine the list of installed extensions for any unknown, untrusted, or recently installed malicious-looking extensionsAffected if Any untrusted or suspicious extension is installed and the Chrome version is vulnerable
You are affected if your Google Chrome version is below 146.0.7680.153 and you have extensions enabled or have installed any extension, since the vulnerability triggers during extension handling.
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 · scoped146.0.7680.153
Update Google Chrome to version 146.0.7680.153 or later. Additionally, restrict extension installation permissions and educate users about installing only trusted extensions from the Chrome Web Store.
Chrome version 146.0.7680.153 or later
- Open Google Chrome on your computer
- Click the three-dot menu icon in the top-right corner
- Select 'Help' and then 'About Google Chrome'
- Chrome will check for updates automatically
- If version 146.0.7680.153 or later is available, click 'Update Google Chrome'
- Restart the browser to complete the update
- Verify the update by going to Help > About Google Chrome and confirm the version number is 146.0.7680.153 or higher
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 / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,560.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-4458 — 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-2026-4458 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