CVE-2026-50519
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 · uneditedInitialization of a resource with an insecure default in GitHub Copilot and Visual Studio Code allows an unauthorized attacker to disclose information over a network.
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 confidenceInitialization of a resource with an insecure default in GitHub Copilot and Visual Studio Code allows an unauthorized attacker to disclose information over a network. This vulnerability stems from a configuration or setting that uses an insecure by-default initialization, potentially exposing sensitive data through network communication.
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 dataall versionsCVSS 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
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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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Check installed GitHub Copilot Chat versionOpen Visual Studio Code, go to Extensions panel, find GitHub Copilot Chat extension, and note the version number displayedAffected if The installed version is lower than 1.123.2 (e.g., 1.122.0, 1.100.0, etc.)
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Verify if Copilot Chat extension is enabledIn VS Code, go to Extensions panel, check if GitHub Copilot Chat is listed as EnabledAffected if The extension is enabled and the version is below 1.123.2
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Check for active network connectivityVerify that VS Code has network access and Copilot Chat features have been used (check for any outgoing connections to github.com or api.github.com)Affected if Network access is active and the vulnerable version is in use
A user is affected if GitHub Copilot Chat extension version is below 1.123.2 and the extension is enabled with active network connectivity, as the insecure default initialization would expose sensitive data during network communication.
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 · scopedUpdate GitHub Copilot and Visual Studio Code to the latest versions which contain the secure default configuration, or review and modify the affected resource initialization settings to disable insecure defaults.
GitHub Copilot Chat version 1.123.2 or later
- Open Visual Studio Code
- Navigate to the Extensions view by clicking the Extensions icon in the Activity Bar (or press Ctrl+Shift+X / Cmd+Shift+X)
- Search for 'GitHub Copilot Chat' in the Extensions marketplace
- Locate the GitHub Copilot Chat extension in the installed extensions list
- Click the 'Update' button if an update is available, or click 'Uninstall' and then reinstall to get the latest version
- Verify the installed version is 1.123.2 or later
- Restart Visual Studio Code to ensure the updated extension loads properly
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation1.0 h
- Testing3.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,224.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-50519 — 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-2026-50519 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