ChromeWeb browser · Google

CVE-2023-4359

MEDIUM · 5.3 CVSS v3.1 Published 2023-08-15
Fix available
A fix is available. Upgrade to 116.0.5845.96 or later.
See remediation →
62/100
Remediation priority · Elevated
Remotely reachable No privileges Zero-click

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 · unedited
Inappropriate implementation in App Launcher in Google Chrome on iOS prior to 116.0.5845.96 allowed a remote attacker to potentially spoof elements of the security UI via a crafted HTML page. (Chromium security severity: Medium)

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 confidence

UI spoofing vulnerability in Google Chrome's iOS App Launcher allows a remote attacker to craft malicious HTML pages that can spoof security UI elements, potentially tricking users into believing they're interacting with legitimate security prompts rather than attacker-controlled content.

MitigationUpdate Google Chrome on iOS to version 116.0.5845.96 or later to obtain the fix for this UI spoofing issue in the App Launcher component.

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
Affected:< 116.0.5845.96
Debian LinuxOperating system
Affected:= 11.0= 12.0
FedoraOperating system
Affected:= 38

CVSS 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
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

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 checks

Work through these to decide whether this CVE applies to you.

  1. Identify if Google Chrome iOS is installed
    Check the installed apps on the iOS device for Google Chrome
    Affected if Google Chrome iOS is present on the device
  2. Determine the installed Google Chrome iOS version
    Open the Chrome iOS app, tap the three-dot menu, go to Settings, and view the version number displayed under Chrome
    Affected if The displayed version is a release build and is less than 116.0.5845.96
  3. Confirm the affected component
    Verify that the Chrome version supports the App Launcher functionality (used for handling links and app launching)
    Affected if The App Launcher component is enabled and active in the Chrome iOS build

A user is affected if they have Google Chrome iOS installed with a version number less than 116.0.5845.96 and the App Launcher component is active

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 · scoped
Upgrade available Upgrade to 116.0.5845.96 or later
Fixed in 116.0.5845.96
Interim mitigation

Update Google Chrome on iOS to version 116.0.5845.96 or later to obtain the fix for this UI spoofing issue in the App Launcher component.

Recommended fix High confidence

Chrome 116.0.5845.96 or later (for all affected platforms)

  1. For Chrome on iOS: Open the App Store and update Google Chrome to version 116.0.5845.96 or later
  2. For Debian Linux: Run 'sudo apt-get update && sudo apt-get install chromium' to install the updated package
  3. For Fedora: Run 'sudo dnf update chromium' to apply the security update
Caveat Chrome updates are typically backward compatible with minimal risk; ensure all browser sessions are closed before upgrading

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Chrome Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing4.0 h
  • Review / QA3.0 h
19.0 hours of engineering $3,380
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $5,408.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2023-4359 — 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 sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2023-4359 in production — separate from our analysis above.

No notes yet

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What this is

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.

What belongs here
  • 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