← All finding types

unsafe_reflection

CWE-470

Unsafe Reflection — a PullGuard finding type. Findings of this type appear in the PR comment, Step Summary, SARIF (GitHub Security tab / IDE viewers), and the HTML report, each with severity, location, and the remediation guidance below.

How to fix

Whitelist the acceptable class/method/module names low effort

// WRONG — any class can be loaded
Class.forName(req.getParameter("cls"));

// RIGHT — explicit allowlist
Set<String> ALLOWED = Set.of("com.x.A", "com.x.B");
String name = req.getParameter("cls");
if (!ALLOWED.contains(name)) throw new IllegalArgumentException();
Class.forName(name);

Triage

Suppress a confirmed non-issue with a committed .pullguardignore entry (pullguard ignore locally, or comment /pullguard ignore <fingerprint> <reason> on the PR — the fingerprint is printed in the PR comment’s Triage section). Entries support expiresAt for time-boxed snoozes.

Security findings at major or critical severity — and any critical finding — always surface: .pullguardignore cannot hide them. The reviewed paths that keep them visible are acknowledged (reviewed, stays in reports) and, for a confirmed false positive, a reasoned false_positive entry — visible and audited, excluded only from the merge block.