Cursor
5
Incidents
6.1
Avg Severity
2
Critical
0
High
Top Failure Modes
Security Vulnerability
1
Destructive Action
1
Infinite Loop
1
Worst Incident
STUPID-2026-0029 10/10Malicious cloned repository triggered code execution in Cursor on Windows
Lovable
1
Incidents
10.0
Avg Severity
1
Critical
0
High
Top Failure Modes
Security Vulnerability
1
Worst Incident
STUPID-2026-0031 10/10Lovable-built apps inverted access control, exposing 170+ production databases (CVE-2025-48757)
Comparison Summary
| Metric | Cursor | Lovable |
|---|---|---|
| Total Incidents | 5 | 1 |
| Avg Severity | 6.1/10 | 10.0/10 |
| Critical Incidents | 2 | 1 |
| Top Failure Mode | Security Vulnerability | Security Vulnerability |
Frequently Asked Questions
Is Cursor or Lovable more reliable?
Based on StupidLLM data, Cursor has 5 documented failures (avg severity 6.1/10) while Lovable has 1 (avg severity 10.0/10). Cursor shows better reliability based on average severity scores.
What are the main differences between Cursor and Lovable failures?
Cursor's most common failure mode is security vulnerability, while Lovable most commonly fails via security vulnerability. Cursor has 2 critical incidents vs Lovable's 1.