Github Copilot
AI Agent Reliability Report
According to StupidLLM's incident database, Github Copilot has 4 documented failures with an average severity of 10.0/10 — including 4 critical and 0 high-severity incidents.
10.0
Avg Severity /10
4
Total Incidents
4
Critical
0
High
Failure Modes
Security Vulnerability4
Root Causes
Training Data Gap2
Instruction Misunderstanding1
Tool Misuse1
Worst Documented Incident
STUPID-2026-000410.0criticalVerified
Copilot autocompleted AWS credentials into public repository
All Github Copilot Incidents
STUPID-2026-000410.0criticalVerified
Copilot autocompleted AWS credentials into public repository
STUPID-2026-002810.0criticalVerified
Rule Files Backdoor: hidden Unicode in config files made Copilot and Cursor emit malicious code
STUPID-2026-004710.0criticalVerified
GitHub Copilot suggested 2,702 valid secrets — 33% of extracted keys were real, live credentials
STUPID-2026-004810.0criticalVerified