ChromeWeb browser · Google
CVE-2026-6297
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 Proxy in Google Chrome prior to 147.0.7727.101 allowed an attacker in a privileged network position to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Critical)
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 · moderate confidenceUse-after-free vulnerability in Google Chrome's Proxy component prior to version 147.0.7727.101 allows an attacker with privileged network position to potentially escape browser sandbox isolation via a maliciously crafted HTML page.
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
< 147.0.7727.101CVSS 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 checksWork through these to decide whether this CVE applies to you.
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Check installed Google Chrome versionNavigate to chrome://settings/help in the Chrome browser, or run 'google-chrome --version' from command line, or check Programs and Features in Windows Control PanelAffected if The displayed version number is lower than 147.0.7727.101
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Confirm Chrome is the affected browserVerify the browser being checked is Google Chrome (not Chromium, Edge, or other Chromium-based browsers) - this CVE specifically affects Google ChromeAffected if The browser is Google Chrome and version is below 147.0.7727.101
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Identify Proxy component usageThis vulnerability is in the Proxy component. Check if the browser uses proxy settings (chrome://settings/proxy) - however note that the flaw exists in the code regardless of proxy configurationAffected if Running any version of Chrome below 147.0.7727.101 means the vulnerable Proxy component code is present
A user is affected if Google Chrome version is lower than 147.0.7727.101, regardless of proxy configuration, as the use-after-free vulnerability exists in the Proxy component code of vulnerable versions
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 · scoped147.0.7727.101
Upgrade Google Chrome to version 147.0.7727.101 or later, or deploy organizational browser update policies to ensure all endpoints receive the security patch.
Chrome 147.0.7727.101
- Verify current Chrome version by navigating to chrome://settings/help
- Download Chrome 147.0.7727.101 from the official Chrome release channels (chrome.com or Google Blog)
- Install the update - Chrome should auto-update, or manually download and install the installer
- Restart Chrome to complete the update
- Verify the version is 147.0.7727.101 or later at chrome://settings/help
Generated from the published advisory — verify against the referenced sources before acting.
Fix this in Chrome
Scoped from the published advisory
- Consultation1.0 h
- Testing1.0 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 $1,200.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-6297 — 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-2026-6297 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