CVE-2026-21256

Summary

Improper neutralization of special elements used in a command ('command injection') in GitHub Copilot and Visual Studio allows an unauthorized attacker to execute code over a network.

Affected Software

VendorProductVersion RangeStatus
MicrosoftMicrosoft Visual Studio 2022 version 17.1417.14.0 < 17.14.26affected
MicrosoftMicrosoft Visual Studio 2026 version 18.318.3.0 < 18.3.0affected

Weaknesses

  • CWE-77: CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection')
  • CWE-94: CWE-94: Improper Control of Generation of Code ('Code Injection')

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: total

References