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PatchSiren cyber security CVE debrief

CVE-2026-81381 Microsoft CVE debrief

CVE-2026-81381 is a medium-severity vulnerability in Visual Studio Code, allowing unauthorized information disclosure due to insufficiently protected credentials. Defenders responsible for Visual Studio Code deployments should assess exposure, verify version 1.136.2 or later is in use, and monitor for unauthorized access attempts. This vulnerability, tracked as CVE-2026-81381, affects Visual Studio Code and GitHub Copilot, with insufficiently protected credentials potentially leading to information disclosure over a network.

Vendor
Microsoft
Product
Visual Studio Code
CVSS
MEDIUM 6.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-09-08
Original CVE updated
2026-09-15
Advisory published
2026-09-08
Advisory updated
2026-09-15

Who should care

Defenders responsible for Visual Studio Code and GitHub Copilot deployments should assess exposure, verify version 1.136.2 or later is in use, and monitor for unauthorized access attempts. This includes reviewing Visual Studio Code deployments for potential credential disclosure and ensuring appropriate security measures are in place to protect against unauthorized information disclosure.

Why it matters

CVE-2026-81381 is a medium-severity vulnerability allowing unauthorized information disclosure in Visual Studio Code due to insufficiently protected credentials. Defenders responsible for Visual Studio Code deployments should assess exposure, verify version 1.136.2 or later is in use, and monitor for unauthorized access attempts.

  • Verify version 1.136.2 or later is in use to prevent exposure
  • Monitor for unauthorized access attempts to sensitive information
  • Review Visual Studio Code deployments for potential credential disclosure

Technical summary

CVE-2026-81381 is a medium-severity vulnerability in Visual Studio Code and GitHub Copilot, allowing unauthorized information disclosure due to insufficiently protected credentials. This vulnerability can be exploited over a network, emphasizing the need for defenders to assess exposure and verify version 1.136.2 or later of Visual Studio Code is in use. The vulnerability highlights the importance of protecting credentials within development environments.

Defensive priority

Assess exposure in Visual Studio Code deployments

Recommended defensive actions

  • Review Visual Studio Code deployments for exposure
  • Verify version 1.136.2 or later is in use
  • Monitor for unauthorized access attempts

Evidence notes

Official CVE Program and NVD records indicate insufficiently protected credentials in GitHub Copilot and Visual Studio Code, allowing unauthorized information disclosure over a network.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-81381 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-81381

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-81381 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-81381

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.