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CVE-2026-50510 Microsoft CVE debrief

CVE-2026-50510 is a HIGH severity vulnerability in Github Copilot, with a CVSS score of 7.8. The vulnerability is caused by improper restriction of names for files and other resources, allowing an unauthorized attacker to execute code locally. Affected users should review and apply patches or updates provided by the vendor. The vulnerability has a significant impact as it allows for local code execution.

Vendor
Microsoft
Product
Github Copilot
CVSS
HIGH 7.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-07-14
Original CVE updated
2026-07-22
Advisory published
2026-07-14
Advisory updated
2026-07-22

Who should care

Users of Github Copilot, security teams, and platform operators should be aware of this vulnerability and take necessary precautions to protect themselves. This includes reviewing system deployments, applying patches, and monitoring for suspicious activity.

Technical summary

The vulnerability is caused by improper restriction of names for files and other resources in Github Copilot. This allows an unauthorized attacker to execute code locally. The CVSS vector for this vulnerability is CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. Defenders should focus on patching or mitigating this vulnerability.

Defensive priority

High priority should be given to patching or mitigating this vulnerability, as it allows for local code execution. Implementing compensating controls and monitoring systems for suspicious activity are also recommended.

Recommended defensive actions

  • Apply patches or updates provided by the vendor
  • Implement compensating controls to limit the impact of the vulnerability
  • Monitor systems for suspicious activity
  • Inventory and verify affected systems
  • Consider implementing additional security measures to prevent exploitation

Evidence notes

The CVE record was published on 2026-07-14T18:17:58.233Z and was last modified on 2026-07-22T16:24:29.957Z. The NVD entry is currently Analyzed. Evidence is limited to CVE and NVD data. Defenders should verify affected systems exist and review official advisories.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-50510 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-50510

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

  • CVE-2026-50510 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-50510

    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.