ChromeWeb browser · Google
CVE-2012-4906
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 · uneditedGoogle Chrome before 18.0.1025308 on Android does not properly restrict access to file: URLs, which allows remote attackers to obtain sensitive information via unspecified vectors, as demonstrated by obtaining credential data, a different vulnerability than CVE-2012-4903.
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 confidenceGoogle Chrome before version 18.0.1025308 on Android improperly restricts access to file: URLs, allowing remote attackers to obtain sensitive information such as credential data from the local device filesystem through unspecified vectors.
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
<= 18.0.1025306CVSS 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
- Authentication
- None
- Confidentiality
- Partial
- Integrity
- None
- Availability
- None
AV:N/AC:L/Au:N/C:P/I:N/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.
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Identify Chrome for Android installationCheck the installed applications on the Android device for Google Chrome. This can be done through Settings > Apps > Google Chrome, or by checking /data/app/ directory for chrome.apk.Affected if Google Chrome for Android is not installed on the device, this CVE does not apply.
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Determine installed Chrome versionOpen Google Chrome on the Android device, navigate to chrome://version, or go to Settings > Apps > Google Chrome > Version to view the exact version number.Affected if The version cannot be determined or Chrome is not present.
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Compare version against affected rangeCompare the installed version number to the affected range. The affected versions are 18.0.1025306 and earlier. Note that version 18.0.1025308 and later are not affected.Affected if The installed version is 18.0.1025306 or lower, indicating the vulnerability is present.
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Verify the attack vectorUnderstand that this vulnerability is triggered when a user visits a malicious webpage that attempts to access file: URLs. The browser must be used to navigate to such content for the flaw to be exploitable.Affected if The user has used Chrome for Android to browse untrusted websites while running an affected version.
If Google Chrome for Android version 18.0.1025306 or earlier is installed and has been used to browse the web, the device is affected by this file: URL restriction vulnerability.
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 dataUpgrade Google Chrome for Android to version 18.0.1025308 or later to remediate the file: URL restriction vulnerability.
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-2012-4906 — 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-2012-4906 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