Highlights
Denial of Service: 2 prior fixes. Scrutinize any change in this area.
Ethon::Easy: most-fixed (1 issue). Treat as high-risk during review.
0 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.
Denial of Service: The use of ObjectSpace.define_finalizer with closures/Procs created reference cycles that prevented Ruby's garbage collector from freeing underlying libcurl easy and multi handles, leading to continuous memory growth during active network operations.
Denial of Service: Failing to bind the root pointer of native multipart forms allocated via curl_formadd to a proper memory reclamation mechanism causes heap exhaustion when handling numerous file or form post requests.