ChromeWeb browser · Google
CVE-2026-12461
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 · uneditedOut of bounds read in WebRTC in Google Chrome on Windows prior to 149.0.7827.155 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML page. (Chromium security severity: High)
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 confidenceAn out-of-bounds read vulnerability exists in the WebRTC component of Google Chrome on Windows versions prior to 149.0.7827.155. A remote attacker can exploit this by tricking a user into visiting a crafted HTML page, allowing the attacker to read memory outside allocated buffers and potentially extract sensitive information from the process memory space.
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
< 149.0.7827.155CVSS 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
- High
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/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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Determine installed Chrome version on WindowsOpen Chrome, click the three-dot menu > Help > About Google Chrome, or navigate to chrome://settings/help. Record the version number displayed.Affected if The displayed version is lower than 149.0.7827.155
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Confirm operating system is WindowsCheck that the Chrome browser is running on a Windows operating system. This vulnerability only affects Chrome on Windows, not macOS or Linux.Affected if Chrome is running on Windows and the version is below 149.0.7827.155
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Verify WebRTC component is presentWebRTC is included by default in Chrome. Visit chrome://webrtc-internals or check that WebRTC API calls function in the browser (for example, via a WebRTC testing site).Affected if WebRTC is available and enabled in the browser, and the Chrome version is below 149.0.7827.155 on Windows
A Windows user is affected if their Google Chrome version is below 149.0.7827.155 and they use the WebRTC functionality.
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 · scoped149.0.7827.155
Upgrade Google Chrome to version 149.0.7827.155 or later on all Windows systems. Apply browser updates through organizational patch management processes.
149.0.7827.155 or later (Chrome stable release)
- Open Google Chrome on Windows
- Click the three-dot menu icon in the top-right corner
- Select 'Settings' from the dropdown menu
- Click 'About Chrome' in the left sidebar
- Chrome will automatically check for updates
- If version 149.0.7827.155 or later is available, click 'Update Google Chrome'
- Restart the browser to apply the update
Generated from the published advisory — verify against the referenced sources before acting.
Fix this in Chrome
Scoped from the published advisory
- Consultation1.0 h
- Implementation2.0 h
- Testing2.0 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 $1,664.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-12461 — 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-2026-12461 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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