Highlights
Path Traversal: 2 prior fixes. Scrutinize any change in this area.
nmf-package: most-fixed (2 issues). Treat as high-risk during review.
3 high-severity fixes in this history; regressions here are high-impact.
Recurring patterns
The bug types that recur here, drawn from past fixes, not open vulnerabilities.
Command Injection: Ground-supplied date strings were passed to a shell command, allowing injection of arbitrary commands. The fix replaced ShellCommander with ProcessBuilder using an explicit argument array, eliminating shell interpretation.
Path Traversal: Zip entry paths were not validated during extraction, allowing entries like ../ to write outside the target directory (Zip Slip). Two separate fixes were needed, indicating the initial sanitization was incomplete.