ChromeWeb browser · Google
CVE-2026-5865
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 · uneditedType Confusion in V8 in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to execute arbitrary code inside a sandbox 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 confidenceType confusion vulnerability in the V8 JavaScript engine in Google Chrome versions prior to 147.0.7727.55 allows remote attackers to execute arbitrary code through a crafted HTML page, though execution is constrained within the sandbox.
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
< 147.0.7727.55CVSS 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 installed versionNavigate to chrome://settings/help in the Chrome browser, or run 'google-chrome --version' in terminalAffected if Version number displayed is lower than 147.0.7727.55
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Verify version via command lineOpen terminal and run: google-chrome --version (Windows: "C:\Program Files\Google\Chrome\Application\chrome.exe" --version)Affected if Output shows a version below 147.0.7727.55
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Check Chrome release channelNavigate to chrome://settings/help and look at the channel indicator (Stable, Beta, Dev, Canary)Affected if Channel is Stable but version is below 147.0.7727.55, indicating the fix has not been deployed
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Inspect V8 engine presenceNavigate to chrome://version and locate the V8 version string in the JavaScript engine fieldAffected if V8 is present (which it always is in Chrome) and the overall Chrome version is below 147.0.7727.55
User is affected if their installed Google Chrome version is lower than 147.0.7727.55, as the type confusion vulnerability in the V8 JavaScript engine exists in all versions prior to this patch.
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 · scoped147.0.7727.55
Update Google Chrome to version 147.0.7727.55 or later to patch the V8 type confusion vulnerability.
Chrome 147.0.7727.55 or later
- Open Google Chrome browser
- Navigate to Settings > Help > About Chrome (or visit chrome://settings/help)
- Chrome will automatically check for available updates
- If version 147.0.7727.55 or later is available, click 'Update Google Chrome' to download and install it
- After the update completes, restart the browser to apply the changes
Generated from the published advisory — verify against the referenced sources before acting.
Fix this in Chrome
Scoped from the published advisory
- Consultation1.0 h
- Implementation1.0 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 $1,376.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-5865 — 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-2026-5865 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