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ChromeWeb browser · Google

CVE-2015-1226

MEDIUM · 5.0 CVSS v2.0 Published 2015-03-09
Fix available
A fix is available. Upgrade to after 40.0.2214.115 or later.
See remediation →
59/100
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
The DebuggerFunction::InitAgentHost function in browser/extensions/api/debugger/debugger_api.cc in Google Chrome before 41.0.2272.76 does not properly restrict what URLs are available as debugger targets, which allows remote attackers to bypass intended access restrictions via a crafted 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 confidence

In Google Chrome before 41.0.2272.76, the DebuggerFunction::InitAgentHost function in debugger_api.cc fails to properly restrict which URLs can be accessed as debugger targets. This allows a malicious Chrome extension to bypass intended access restrictions and potentially access sensitive URLs that should not be available to the debugger API.

MitigationUpdate Google Chrome to version 41.0.2272.76 or later. Organizations should ensure automatic updates are enabled or push the patched version to endpoints.

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:<= 40.0.2214.115

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
Authentication
None
Confidentiality
None
Integrity
Partial
Availability
None

AV:N/AC:L/Au:N/C:N/I:P/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. Check installed Chrome version
    Navigate to chrome://version in the Chrome browser or run 'google-chrome --version' from command line
    Affected if The version displayed is 40.0.2214.115 or earlier (versions 40.x and below before 40.0.2214.115)
  2. Verify Chrome channel for updates
    Navigate to chrome://chrome and check the 'Update channel' section, or check chrome://settings for update status
    Affected if Chrome is on a channel older than stable or has not received updates since the patched version 41.0.2272.76
  3. Check for installed extensions with debugger permissions
    Navigate to chrome://extensions, enable Developer mode, and review any extensions that have 'Debugger' permission listed in their manifest
    Affected if Extensions with debugger permissions are installed and Chrome version is 40.0.2214.115 or earlier

You are affected if Chrome version is 40.0.2214.115 or earlier AND you have extensions installed that can access the debugger API.

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.

From vendor data
Upgrade available Upgrade to a release after 40.0.2214.115
Interim mitigation

Update Google Chrome to version 41.0.2272.76 or later. Organizations should ensure automatic updates are enabled or push the patched version to endpoints.

Fix this in Chrome Scoped from the published advisory
  • Consultation1.0 h
  • Implementation1.0 h
  • Testing1.0 h
  • Review / QA1.0 h
4.0 hours of engineering $750
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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-2015-1226 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