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Security audit

GitHub API - Profiles, Repos, Issues, Search, Email Finder

Security checks for vulnerabilities and agentic risk

Overview

This skill is a disclosed GitHub data lookup integration that sends user-requested GitHub queries to Scavio's API and does not show hidden execution, persistence, or destructive behavior.

Before installing, understand that use requires a Scavio API key and sends your GitHub lookup inputs to Scavio's hosted API, consuming credits for successful calls. Be especially careful with the public commit email endpoint because it can return personal data, even though the skill discloses that limitation.

A.I.G

Vulnerability Patterns
  • Skill Instruction HijackingAlters the agent's session goals or safety constraints when the skill loads
  • Agent Memory PoisoningWrites attacker-controlled rules into memory that affect later sessions
  • Remote Payload Retrieval and ExecutionFetches external code whose behavior can change after review
  • Embedded Malicious CodeShips malicious scripts inside the skill and executes them locally
  • Unauthorized Access and Privilege EscalationObtains permissions beyond the task's legitimate needs

SkillSpector

Vulnerability Patterns
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
Findings (7)

External Transmission

Medium
Category
Data Exfiltration
Confidence
70% confidence
Finding

Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

Content

Scanner excerpt · SKILL.md (reported line 108)May include surrounding context.

md
HEADERS = {"Authorization": f"Bearer {API_KEY}"}

# 1. A repo's core metadata (1 credit)
repo = requests.post(f"{BASE}/api/v1/github/repo", headers=HEADERS,
    json={"url": "facebook/react"}).json()

# 2. Its most-reacted open issues (5 credits)

External Transmission

Medium
Category
Data Exfiltration
Confidence
70% confidence
Finding

Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

Content

Scanner excerpt · SKILL.md (reported line 112)May include surrounding context.

md
json={"url": "facebook/react"}).json()

# 2. Its most-reacted open issues (5 credits)
top = requests.post(f"{BASE}/api/v1/github/repo/top-issues", headers=HEADERS,
    json={"url": "facebook/react", "sort": "reactions", "per_page": 10}).json()

# 3. Search the top ML repositories by stars (1 credit)

External Transmission

Medium
Category
Data Exfiltration
Confidence
70% confidence
Finding

Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

Content

Scanner excerpt · SKILL.md (reported line 116)May include surrounding context.

md
json={"url": "facebook/react", "sort": "reactions", "per_page": 10}).json()

# 3. Search the top ML repositories by stars (1 credit)
search = requests.post(f"{BASE}/api/v1/github/search", headers=HEADERS,
    json={"query": "machine learning", "type": "repositories",
          "sort": "stars", "order": "desc", "per_page": 20}).json()

External Transmission

Medium
Category
Data Exfiltration
Confidence
70% confidence
Finding

Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

Content

Scanner excerpt · SKILL.md (reported line 121)May include surrounding context.

md
"sort": "stars", "order": "desc", "per_page": 20}).json()

# 4. A full repo dossier (5 credits) and a user's 90-day velocity (10 credits)
dossier = requests.post(f"{BASE}/api/v1/github/repo/dossier", headers=HEADERS,
    json={"url": "facebook/react"}).json()
velocity = requests.post(f"{BASE}/api/v1/github/user/profile-velocity", headers=HEADERS,
    json={"handle": "torvalds", "depth": "default"}).json()

External Transmission

Medium
Category
Data Exfiltration
Confidence
70% confidence
Finding

Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

Content

Scanner excerpt · SKILL.md (reported line 123)May include surrounding context.

4. A full repo dossier (5 credits) and a user's 90-day velocity (10 credits)

dossier = requests.post(f"{BASE}/api/v1/github/repo/dossier", headers=HEADERS, json={"url": "facebook/react"}).json() velocity = requests.post(f"{BASE}/api/v1/github/user/profile-velocity", headers=HEADERS, json={"handle": "torvalds", "depth": "default"}).json()

text

External Transmission

Medium
Category
Data Exfiltration
Confidence
60% confidence
Finding

Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

Content

Scanner excerpt · SKILL.md (reported line 130)May include surrounding context.

curl:

bash
curl -s https://api.scavio.dev/api/v1/github/profile \
  -H "Authorization: Bearer $SCAVIO_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"handle":"torvalds"}'

External Transmission

Medium
Category
Data Exfiltration
Confidence
50% confidence
Finding

Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

Content

Scanner excerpt · SKILL.md (reported line 130)May include surrounding context.

curl:

bash
curl -s https://api.scavio.dev/api/v1/github/profile \
  -H "Authorization: Bearer $SCAVIO_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"handle":"torvalds"}'