ChromeWeb browser · Google
CVE-2026-9885
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 · uneditedInsufficient validation of untrusted input in UI in Google Chrome on Mac prior to 148.0.7778.216 allowed a remote attacker who had compromised the renderer process 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 · high confidenceInsufficient validation of untrusted input in Chrome's UI on Mac allowed a remote attacker with a compromised renderer process to potentially escape the sandbox via a crafted HTML page. This is a logic/validation flaw in the UI component that could be chained with a renderer exploit to break out of Chrome's sandbox isolation.
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
< 148.0.7778.216CVSS 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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Verify the operating system is macOSRun 'uname -s' in terminal or check System Settings > About to confirm the OS is Darwin/macOS. This vulnerability only affects Chrome on Mac OS.Affected if The operating system is not macOS (the vulnerability only applies to Chrome on Mac OS).
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Confirm Google Chrome is installedCheck for the Chrome application at /Applications/Google Chrome.app or run 'ls /Applications | grep -i chrome' in terminal.Affected if Google Chrome is not installed on the system.
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Determine the installed Google Chrome versionOpen Google Chrome, click the three-dot menu > Help > About Google Chrome, or run '/Applications/Google\ Chrome.app/Contents/MacOS/Google\ Chrome --version' in terminal.Affected if The displayed version number is less than 148.0.7778.216 (e.g., 148.0.7778.0, 147.x.x.x, etc.).
A system is affected if it runs Google Chrome on macOS with version lower than 148.0.7778.216, though the vulnerability requires a prior compromised renderer process to be exploitable.
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 · scoped148.0.7778.216
Update Google Chrome for Mac to version 148.0.7778.216 or later to remediate this vulnerability. Organizations should ensure browser patch management is in place.
148.0.7778.216 or later
- Open Google Chrome on your Mac
- Click on the Chrome menu (three-dot menu) in the top-right corner
- Select 'Help' from the dropdown menu
- Click on 'About Google Chrome'
- Chrome will check for updates automatically
- If an update is available, click 'Update Google Chrome'
- Restart the browser to complete the installation
- Verify the version by returning to About Google Chrome and confirm it shows version 148.0.7778.216 or later
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
- 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-2026-9885 — 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-2026-9885 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
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