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PatchSiren cyber security CVE debrief

CVE-2026-81357 Microsoft CVE debrief

A server-side request forgery (SSRF) vulnerability exists in Visual Studio Code, allowing an unauthorized attacker to bypass a security feature over a network. The CVE record was published on 2026-09-08T18:20:53.693Z and was last modified on 2026-09-11T21:10:10.457Z. The NVD entry is currently Analyzed. This vulnerability, known as CVE-2026-81357, has a CVSS score of 8.2, indicating high severity. It is crucial for defenders responsible for Visual Studio Code deployments to assess potential exposure and impact. This includes developers, security teams, and IT professionals managing Visual Studio Code environments. The vulnerability allows unauthorized attackers to bypass security

Vendor
Microsoft
Product
Visual Studio Code
CVSS
HIGH 8.2
CISA KEV
Not listed in stored evidence
Original CVE published
2026-09-08
Original CVE updated
2026-10-14
Advisory published
2026-09-08
Advisory updated
2026-10-14

Who should care

Defenders responsible for Visual Studio Code deployments should assess potential exposure and impact. This includes developers, security teams, and IT professionals managing Visual Studio Code environments.

Why it matters

The CVE-2026-81357 vulnerability in Visual Studio Code allows unauthorized attackers to bypass security features, potentially leading to data breaches or system compromise. Defenders should prioritize verifying exposure and assessing impact.

  • Potential bypass of security features
  • Unauthorized access to sensitive resources
  • Possible data breaches or system compromise
  • Need for verification of exposure and impact

Technical summary

The CVE-2026-81357 vulnerability is a server-side request forgery (SSRF) issue in Visual Studio Code. It allows an unauthorized attacker to bypass a security feature over a network. The vulnerability has a CVSS score of 8.2 and is considered high severity.

Defensive priority

Defenders should prioritize verifying exposure and assessing potential impact, focusing on Visual Studio Code deployments.

Recommended defensive actions

  • Verify Visual Studio Code deployments for potential exposure
  • Assess the impact of the SSRF vulnerability on your organization
  • Apply patches or mitigations as recommended by the vendor

Evidence notes

The vulnerability is described as a server-side request forgery (SSRF) issue in Visual Studio Code, allowing unauthorized attackers to bypass security features over a network. The CVSS score is 8.2, indicating high severity.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-81357 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-81357

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

  • CVE-2026-81357 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-81357

    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.