ChromeWeb browser · Google
CVE-2026-12012
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 · uneditedUse after free in Network in Google Chrome prior to 149.0.7827.115 allowed an attacker in a privileged network position to potentially exploit heap corruption via malicious network traffic. (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 confidenceUse-after-free vulnerability in Chrome's Network component allows an attacker with privileged network position to potentially exploit heap corruption via malicious network traffic, affecting versions prior to 149.0.7827.115.
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
< 149.0.7827.115CVSS 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
- High
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
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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Find installed Chrome versionOpen Chrome and navigate to chrome://version, or click Menu > Help > About Google Chrome. Note the version number shown.Affected if The displayed version is less than 149.0.7827.115 (for example, 149.0.7827.100 or earlier).
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Confirm version format matchesVerify the full version string includes the four-part build number (such as 149.0.7827.115). Chrome versions follow the pattern major.minor.build.patch.Affected if The version follows the Chrome numbering scheme but is below 149.0.7827.115.
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Check if Chrome Network feature is in useThe vulnerability affects the Network component in Chrome. Any active network usage in Chrome (browsing, WebRTC, HTTP requests) exercises this component.Affected if Chrome is actively used for network requests and the version is below 149.0.7827.115.
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Verify no local hotfix appliedReview any locally installed security patches or enterprise policies that claim to address this CVE. Check chrome://policy for active policies.Affected if No enterprise policy overrides the vulnerable Network component and the version remains below 149.0.7827.115.
You are affected if Google Chrome is installed with any version number lower than 149.0.7827.115.
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 · scoped149.0.7827.115
Update Google Chrome to version 149.0.7827.115 or later to remediate this vulnerability.
Chrome version 149.0.7827.115 or later
- Open Google Chrome browser
- Click the three-dot menu icon in the top-right corner
- Select 'Help' from the dropdown menu
- Click 'About Google Chrome'
- Chrome will automatically check for updates and display the current version
- If an update is available, click 'Update Google Chrome' (or wait for it to download automatically)
- After the update completes, click 'Relaunch' to restart Chrome and apply the update
- Alternatively, download the latest stable version directly from the official Chrome download page at google.com/chrome
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
- 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-2026-12012 — 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-2026-12012 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