Highlights
Auth Bypass: 2 prior fixes. Scrutinize any change in this area.
src/contracts/security/security.service.ts: most-fixed (2 issues). Treat as high-risk during review.
7 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.
Auth Bypass: Two high-severity fixes removed support for deprecated DSM versions and made version checks fail-closed, preventing downgrade attacks that could bypass security logic.
Integrity Bypass: Deposit root integrity was only checked at load time, allowing tampered cached events to be processed; moving the check to deposit time closed this bypass.
Logic Flaw: Deposit gating logic omitted unresolved duplicated keys, allowing deposits to proceed despite unresolved duplicates; the fix added them to the block list.