diff --git a/package.json b/package.json
index b9bef71..bccb2c8 100644
--- a/package.json
+++ b/package.json
@@ -60,7 +60,7 @@
   "homepage": "https://github.com/miccy/worms-ctrl#readme",
   "packageManager": "bun@1.1.38",
   "engines": {
-    "node": ">=18"
+    "node": ">=20.19"
   },
   "overrides": {
     "vite": "8.0.10"
diff --git a/packages/engine/src/types.ts b/packages/engine/src/types.ts
index afdda13..e2035d8 100644
--- a/packages/engine/src/types.ts
+++ b/packages/engine/src/types.ts
@@ -1,16 +1,14 @@
 export type FeedSource = 'osv' | 'socket' | 'github' | 'phylum' | 'npm-replicate' | 'rss'
 
-export type ThreatEcosystem =
-  | 'npm'
-  | 'pypi'
-  | 'cargo'
-  | 'rubygems'
-  | 'gem'
-  | 'linux'
-  | 'maven'
-  | 'nuget'
-export type ThreatSeverity = 'CRITICAL' | 'HIGH' | 'MEDIUM' | 'LOW'
-export type ThreatStatus = 'ACTIVE' | 'PATCHED' | 'ARCHIVED' | 'UNDER_REVIEW'
+export type ThreatEcosystem = 'npm' | 'pypi' | 'cargo' | 'rubygems' | 'linux'
+
+export type ThreatProfileEcosystem = ThreatEcosystem | 'gem' | 'maven' | 'nuget'
+
+export type ThreatSeverity = 'CRITICAL' | 'HIGH' | 'MEDIUM'
+export type ThreatProfileSeverity = ThreatSeverity | 'LOW'
+
+export type ThreatStatus = 'ACTIVE' | 'PATCHED' | 'ARCHIVED'
+export type ThreatProfileStatus = ThreatStatus | 'UNDER_REVIEW'
 
 export interface ThreatMaliciousVersion {
   package: string
@@ -66,9 +64,9 @@ export interface IOC {
 export interface ThreatProfile {
   id: string
   name: string
-  ecosystem: ThreatEcosystem
-  severity: ThreatSeverity
-  status: ThreatStatus
+  ecosystem: ThreatProfileEcosystem
+  severity: ThreatProfileSeverity
+  status: ThreatProfileStatus
   iocs: IOC[]
   ttp?: string[] // MITRE ATT&CK IDs
   references: string[]
diff --git a/packages/engine/tests/osv.test.ts b/packages/engine/tests/osv.test.ts
index c09fe3e..fe090d5 100644
--- a/packages/engine/tests/osv.test.ts
+++ b/packages/engine/tests/osv.test.ts
@@ -24,6 +24,8 @@ describe('osvToThreatProfile', () => {
     expect(result.ecosystem).toBe('npm')
     expect(result.severity).toBe('LOW') // Default score 0 -> LOW
     expect(result.status).toBe('UNDER_REVIEW')
+    expect(result.modified).toBe(baseOsv.modified)
+    expect(result.published).toBe(baseOsv.published)
   })
 
   test('maps CVSS_V3 scores to severity correctly', () => {
@@ -36,6 +38,7 @@ describe('osvToThreatProfile', () => {
       { score: '4.0', expected: 'MEDIUM' },
       { score: '3.9', expected: 'LOW' },
       { score: '0.0', expected: 'LOW' },
+      { score: 'N/A', expected: 'LOW' },
     ]
 
     for (const { score, expected } of testCases) {
diff --git a/packages/ioc/index.js b/packages/ioc/index.js
index f1e99cc..e4d787d 100644
--- a/packages/ioc/index.js
+++ b/packages/ioc/index.js
@@ -53,7 +53,12 @@ function loadThreatCatalog(forceReload = false) {
   for (const entry of entries) {
     try {
       const content = readFileSync(join(THREATS_DIR, entry), 'utf8')
-      threats.push(JSON.parse(content))
+      const parsed = JSON.parse(content)
+      if (typeof parsed === 'object' && parsed !== null && !Array.isArray(parsed) && 'id' in parsed && 'status' in parsed) {
+        threats.push(parsed)
+      } else {
+        console.warn(`[ioc] Skipping invalid threat file ${entry}: missing required fields or not an object`)
+      }
     } catch (error) {
       const message = error instanceof Error ? error.message : 'unknown error'
       console.warn(`[ioc] Skipping malformed threat file ${entry}: ${message}`)
diff --git a/packages/scanner/src/detectors/injection.ts b/packages/scanner/src/detectors/injection.ts
index 0109858..9d696fd 100644
--- a/packages/scanner/src/detectors/injection.ts
+++ b/packages/scanner/src/detectors/injection.ts
@@ -36,8 +36,10 @@ function loadPackageJsonDeps(targetDir: string): Set<string> | null {
       }
     }
     return declared
-  } catch {
-    return null
+  } catch (error) {
+    const message = error instanceof Error ? error.message : 'unknown error'
+    console.warn(`[detectInjection] loadPackageJsonDeps failed for ${targetDir}: ${message}`)
+    return new Set<string>()
   }
 }
 
@@ -75,7 +77,7 @@ export function detectInjection(
     for (const match of phantomMatches) {
       findings.push({
         type: 'injection',
-        severity: 'critical',
+        severity: toFindingSeverity(match.threat.severity),
         package: pkg.name,
         message: `Phantom dependency: ${pkg.name}@${version} — not declared in package.json, matches known IOC`,
         location,
diff --git a/packages/scanner/src/output/sarif.ts b/packages/scanner/src/output/sarif.ts
index ca0fecd..96bf688 100644
--- a/packages/scanner/src/output/sarif.ts
+++ b/packages/scanner/src/output/sarif.ts
@@ -60,7 +60,7 @@ function severityToSarifLevel(severity: Finding['severity']): 'error' | 'warning
 
 /** Generate SARIF ruleId from finding type */
 function ruleId(finding: Finding): string {
-  const map: Record<string, string> = {
+  const map: Record<Finding['type'], string> = {
     injection: 'WCTRL/scan/injected-package',
     'hash-mismatch': 'WCTRL/scan/hash-mismatch',
     doppelganger: 'WCTRL/scan/doppelganger',
@@ -68,9 +68,7 @@ function ruleId(finding: Finding): string {
     'suspicious-script': 'WCTRL/scan/suspicious-script',
   }
 
-  // Normalize finding.type from camelCase to kebab-case if necessary
-  const normalizedType = finding.type.replace(/([a-z0-9])([A-Z])/g, '$1-$2').toLowerCase()
-  return map[normalizedType] ?? map[finding.type] ?? 'WCTRL/scan/unknown'
+  return map[finding.type]
 }
 
 /** Convert finding location string to SARIF location */
diff --git a/packages/scanner/src/parsers/bun.ts b/packages/scanner/src/parsers/bun.ts
index 5bcaf0f..e4a5220 100644
--- a/packages/scanner/src/parsers/bun.ts
+++ b/packages/scanner/src/parsers/bun.ts
@@ -10,6 +10,10 @@ function resolveBunLockTextPath(targetOrPath: string): string | null {
   if (basename(targetOrPath) === 'bun.lock') {
     return existsSync(targetOrPath) ? targetOrPath : null
   }
+  if (basename(targetOrPath) === 'bun.lockb') {
+    const candidate = join(dirname(targetOrPath), 'bun.lock')
+    return existsSync(candidate) ? candidate : null
+  }
 
   const candidate = join(targetOrPath, 'bun.lock')
   return existsSync(candidate) ? candidate : null
@@ -203,8 +207,14 @@ export function parseBunLockfile(targetDirOrPath: string): ParsedPackage[] {
     }
   }
 
-  const bunLockBinaryPath =
-    basename(targetDirOrPath) === 'bun.lockb' ? targetDirOrPath : join(targetDirOrPath, 'bun.lockb')
+  let bunLockBinaryPath = ''
+  if (basename(targetDirOrPath) === 'bun.lockb') {
+    bunLockBinaryPath = targetDirOrPath
+  } else if (basename(targetDirOrPath) === 'bun.lock') {
+    bunLockBinaryPath = join(dirname(targetDirOrPath), 'bun.lockb')
+  } else {
+    bunLockBinaryPath = join(targetDirOrPath, 'bun.lockb')
+  }
 
   if (!existsSync(bunLockBinaryPath)) {
     return []
diff --git a/packages/scanner/src/parsers/pnpm.ts b/packages/scanner/src/parsers/pnpm.ts
index a5488e4..856eb33 100644
--- a/packages/scanner/src/parsers/pnpm.ts
+++ b/packages/scanner/src/parsers/pnpm.ts
@@ -15,6 +15,7 @@ interface PnpmPackageEntry {
 interface PnpmLockfile {
   lockfileVersion?: number | string
   packages?: Record<string, PnpmPackageEntry>
+  snapshots?: Record<string, PnpmPackageEntry>
 }
 
 export interface ParsedPackage extends LockfilePackage {}