Head to head
Cursor vs Devin
Comparing 4 documented Cursor incidents against 9 for Devin.
What these records show
Devin has the lower average severity among the incidents collected here (7.8 vs 2.4 for Cursor and Devin, from 4 and 9 incidents). These records can't establish which agent is safer: counts reflect how widely each is used and how often people report failures, not a failure rate.
| Metric | Cursor | Devin |
|---|---|---|
| Documented incidents | 4 | 9 |
| Average severity | 7.8 | 2.4 |
| Critical | 1 | 0 |
| High | 3 | 0 |
| Source checked | 4 | 9 |
Severity at a glance
Failure modes
The incidents behind these numbers
Cursor
9.0Cursor's terminal sandbox trusted an agent-set working directory, letting zero-click prompt injection escape it and gain code execution (CVE-2026-50548)8.0Malicious cloned repository triggered code execution in Cursor on Windows7.0Cursor agent approved to delete one 18.5GB temp folder instead ran a mis-quoted rmdir that wiped a developer's source, Git repo, and six months of ERP backups7.0Cursor AI agent deleted PocketOS's entire production database and backups in 9 seconds
Devin
5.0Devin replaced entire medical website with unrelated renal care site3.0Devin CI workflow caused 836-comment spam storm on single PR2.0Devin built 13,600-line app with build failure instead of lean campaign dashboard2.0Devin PR broke ledger list API and created buckets on deleted resources2.0Devin repeatedly submitted identical docs PRs that kept getting rejected