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CVE-2026-81383 Microsoft CVE debrief

Microsoft Visual Studio Code Information Disclosure Vulnerability allows unauthorized attackers to disclose information over a network due to incorrect resolution of names or references. This high-severity vulnerability affects Visual Studio Code deployments, potentially leading to information leaks. Defenders should assess exposure and prioritize verifying and remediating this vulnerability to prevent potential information disclosure. The CVE record and source item provide details on the vulnerability, but additional information on affected versions and potential exploitation is needed for thorough assessment.

Vendor
Microsoft
Product
Visual Studio Code
CVSS
HIGH 7.4
CISA KEV
Not listed in stored evidence
Original CVE published
2026-09-08
Original CVE updated
2026-10-08
Advisory published
2026-09-08
Advisory updated
2026-10-08

Who should care

Defenders responsible for Visual Studio Code deployments should assess exposure and potential impact of this information disclosure vulnerability.

Why it matters

CVE-2026-81383 is a high-severity information disclosure vulnerability in Visual Studio Code that defenders should prioritize verifying and remediating.

  • Potential information leaks due to incorrect resolution of names or references
  • Need to verify exposure of Visual Studio Code deployments
  • Possible impact on confidentiality

Technical summary

The vulnerability in Visual Studio Code allows an unauthorized attacker to disclose information over a network due to the use of incorrectly-resolved names or references. This information disclosure vulnerability affects Visual Studio Code deployments, potentially leading to information leaks. Defenders should prioritize verifying exposure of Visual Studio Code to this vulnerability and assess the impact of potential information leaks. The vulnerability has a high severity score, emphasizing the need for prompt verification and remediation.

Defensive priority

Defenders should prioritize verifying exposure of Visual Studio Code to this information disclosure vulnerability and assess the impact of potential information leaks.

Recommended defensive actions

  • Verify exposure of Visual Studio Code to this information disclosure vulnerability
  • Assess potential impact of information leaks
  • Review and apply vendor-provided patches
  • Monitor for suspicious activity related to this vulnerability

Evidence notes

The CVE record and source item provide details on the vulnerability, but additional information on affected versions and potential exploitation is needed for thorough assessment.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-81383 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-81383

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

  • CVE-2026-81383 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-81383

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

Supplemental references

  • Visual Studio Code Information Disclosure Vulnerability

    Unverified legacy reference

    URL: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/81xxx/CVE-2026-81383.json

    cve_program_cvelist_v5

  • Source reference

    Unverified legacy reference

    URL: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-81383

    Supplemental source - vendor-advisory, patch

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.