CVE-2026-29783

The shell tool within GitHub Copilot CLI versions prior to and including 0.0.422 can allow arbitrary code execution through crafted bash parameter expansion patterns. An attacker who can influence the commands executed by the agent e.g., via prompt injection through repository files, MCP server...

CVE-2026-29783 GitHub Copilot CLI allows for dangerous shell expansion patterns that enable arbitrary command execution

The shell tool within GitHub Copilot CLI versions prior to and including 0.0.422 can allow arbitrary code execution through crafted bash parameter expansion patterns. An attacker who can influence the commands executed by the agent e.g., via prompt injection through repository files, MCP server...

PT-2026-23732

Name of the Vulnerable Software and Affected Versions GitHub Copilot CLI versions prior to 0.0.423 Description The shell tool within GitHub Copilot CLI is susceptible to arbitrary code execution through crafted bash parameter expansion patterns. An attacker influencing commands executed by the...