GCD AI RADAR
incidents/AIR-2026-0981

GitHub Copilot CLI shell tool arbitrary code execution vulnerability

Attack on AI2 Disclosed vulnerabilityInfrastructure vulnerabilityPrompt injection

GitHub Copilot CLI contained a vulnerability allowing arbitrary code execution through crafted bash parameter expansion patterns. The issue was patched in version 0.0.423 following vendor disclosure.

disclosed CVENo confirmed exploitation, so this record is tracked as a disclosed vulnerability and not counted as an incident. It moves into the counts if CISA or the vendor confirms exploitation. Why

Details

type
Attack on AI
An AI model, agent or AI-powered product was the thing exploited, abused or leaked.
categories
  • Infrastructure vulnerabilityprimary
    CVEs and advisories in AI frameworks, inference servers, MCP servers, AI developer tools and hosting stacks.
  • Prompt injection
    Untrusted content (web pages, documents, emails, tool output) steers a model into ignoring its instructions.
owasp llm top 10
mitre atlas
Both rows are derived from the type and categories (OWASP 2025 edition, ATLAS release 2026.09), not classified per record. How
severity
2 · Disclosed vulnerability
CVE or vendor advisory, patched or patchable, no confirmed exploitation.
targets
Microsoft, Framework / tooling
products
GitHub Copilot CLI
incident date
6 Mar 2026
first reported
6 Mar 2026
origin
NVD
Vulnerability record from NVD / the GitHub Advisory Database. This product uses the NVD API but is not endorsed or certified by the NVD.
classifier confidence
0.95 · published at or above 0.80; see the methodology
tags
CVE-2026-29783 · command_injection · github_copilot
record
created 2026-10-18 10:04Z · updated 2026-10-18 10:04Z · json

Sources · 1

  1. 2026-03-06
    CVE-2026-29783: The shell tool within GitHub Copilot CLI versions prior to and including 0.0.422 can allow arbitrary code execution through…
    NVD · nvd.nist.gov/vuln/detail/CVE-2026-29783

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