ChromeWeb browser · Google
CVE-2019-5778
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 · uneditedA missing case for handling special schemes in permission request checks in Extensions in Google Chrome prior to 72.0.3626.81 allowed an attacker who convinced a user to install a malicious extension to bypass extension permission checks for privileged pages via a crafted Chrome Extension.
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 missing case for handling special schemes in permission request checks in Chrome's Extensions component allowed a malicious extension to bypass extension permission checks for privileged pages. An attacker needed to convince a user to install the malicious extension first, then could exploit this to access privileged pages without proper authorization.
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
< 72.0.3626.81
Debian LinuxOperating system
= 9.0
Enterprise Linux DesktopOperating system
= 6.0
Enterprise Linux ServerOperating system
= 6.0
Enterprise Linux WorkstationOperating system
= 6.0
FedoraOperating system
= 29= 30CVSS 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
- None
- Integrity
- High
- Availability
- None
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/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 checksWork through these to decide whether this CVE applies to you.
-
Check Google Chrome version on Windows or MacOpen chrome://settings/help or click Help > About Google Chrome to view the installed version numberAffected if The displayed version is earlier than 72.0.3626.81 (for example, 72.0.3626.80 or any 71.x.x.x release)
-
Check Chrome package version on Debian LinuxRun 'dpkg -l | grep google-chrome' or 'apt-cache policy google-chrome-stable' to view the installed Chrome versionAffected if The installed version is earlier than 72.0.3626.81-1
-
Check Chrome package version on RHEL/CentOS/RHEL Desktop/Server/WorkstationRun 'rpm -qa | grep chrome' to list installed Chrome packagesAffected if The installed version is earlier than 72.0.3626.81
-
Check Chrome package version on FedoraRun 'rpm -qa | grep google-chrome' or 'dnf list installed google-chrome-stable'Affected if The installed version is earlier than 72.0.3626.81-1
-
Identify installed Chrome extensionsNavigate to chrome://extensions/ and review all installed extensions, noting their sources and permissionsAffected if Any unknown or untrusted extensions with broad permissions are present, as the vulnerability requires a malicious extension to be installed first
You are affected if your Google Chrome version is earlier than 72.0.3626.81 (or the equivalent package version on Linux) AND you have installed an untrusted extension that could exploit the permission bypass.
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.
From vendor data72.0.3626.81
Update Google Chrome to version 72.0.3626.81 or later to address this vulnerability. Organizations should ensure automatic updates are enabled or deploy the update via their endpoint management systems.
Fix this in Chrome
Scoped from the published advisory
- Consultation1.0 h
- Implementation2.0 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 $1,424.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2019-5778 — 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-2019-5778 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
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
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