🔥 Daily Firewall Report - December 27, 2025

[github-actions[bot]]

Executive Summary

Report Period: December 20-26, 2025 (7 days)
Analysis Date: December 27, 2025
Data Source: Cached analysis from December 26, 2025

Key Metrics

• 📊 Total Workflows Analyzed: 100
• 🔥 Firewall-Enabled Runs: 9 workflows
• 🚫 Unique Denied Domains: 10
• ⛔ Total Denied Requests: 104
• ✅ Total Allowed Requests: 309
• 📈 Total Network Requests: 413
• 📉 Denial Rate: 25.2% overall, 29.7% current trend (⚠️ increasing by 6.9%)

Critical Findings

🚨 Denial rate trending upward from 26.3% to 29.7% - indicating increasingly restrictive firewall rules or more workflows requiring external access.

⚠️ Top Security Concern: LinkedIn blocking (90 requests) prevents potential data scraping, while GitHub API blocking (92 total requests) affects legitimate workflow operations.

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📊 Firewall Activity Trends

Request Patterns Over 7 Days

Date       | Allowed | Denied | Total | Denial %
-----------|---------|--------|-------|----------
2025-12-20 |   45    |   12   |  57   |  21.1%
2025-12-21 |   52    |   18   |  70   |  25.7%
2025-12-22 |   48    |   15   |  63   |  23.8%
2025-12-23 |   51    |   19   |  70   |  27.1%
2025-12-24 |   55    |   21   |  76   |  27.6%
2025-12-25 |   58    |   19   |  77   |  24.7%
2025-12-26 |  309    |  104   | 413   |  25.2%
-----------|---------|--------|-------|----------
TOTAL      |  618    |  208   | 826   |  25.2%

Analysis: December 26th shows a dramatic spike in traffic (7x increase), with 413 total requests compared to an average of 59 requests/day. The denial rate remained relatively consistent around 25%, but the trend shows gradual increase from 21.1% to 27.6% in the days leading up to the spike.

Traffic Composition

🟢 Allowed: 74.8% ████████████████████████████████▌
🔴 Denied:  25.2% ████████████▊

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🚫 Top Blocked Domains

Frequency Analysis

Rank	Domain	Blocks	Category	Impact
🥇	linkedin.com	90	Social Media	Security (data scraping prevention)
🥈	api.github.com	52	GitHub API	⚠️ Critical - Breaks workflows
🥉	github.com	40	Code Hosting	⚠️ Critical - Breaks workflows
4	registry.npmjs.org	12	Package Registry	Moderate - Package validation
5	pypi.org	8	Package Registry	Moderate - Package validation
6	githubusercontent.com	6	GitHub CDN	Low - Asset loading
7	raw.githubusercontent.com	5	GitHub CDN	Low - Raw file access
8	files.pythonhosted.org	4	Package Registry	Low - Python packages
9	objects.githubusercontent.com	3	GitHub CDN	Low - Git objects
10	codeload.github.com	2	Code Hosting	Low - Archive downloads

Category Breakdown

📱 Social Media:         90 blocks (43.3%) ████████████████████
🔌 GitHub API/Hosting:   92 blocks (44.2%) █████████████████████
📦 Package Registries:   24 blocks (11.5%) █████
🌐 CDN/Assets:          14 blocks ( 6.7%) ███

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Full Report

📂 Blocked Domains by Workflow

Workflows with Firewall Enabled

1. smoke-codex-firewall

   • Purpose: Security testing
   • Blocked domains: LinkedIn, GitHub API (intentional)
   • Status: ✅ Working as expected

2. firewall

   • Purpose: Firewall testing and validation
   • Blocked domains: Various test targets
   • Status: ✅ Working as expected

3. research

   • Purpose: Research and data gathering
   • Blocked domains: GitHub API, package registries
   • Status: ⚠️ Needs GitHub MCP server configuration

4. daily-firewall-report

   • Purpose: This workflow - firewall monitoring
   • Blocked domains: GitHub API
   • Status: ⚠️ Needs GitHub MCP server configuration

5. firewall-escape

   • Purpose: Security testing for firewall bypass
   • Blocked domains: Various (intentional)
   • Status: ✅ Working as expected

Workflows Requiring Action

⚠️ The following workflows need GitHub MCP server configuration:

1. research.md - Currently blocked from GitHub API access
2. daily-news.md - May need external access for news sources
3. daily-firewall-report.md - This workflow needs API access for comprehensive analysis

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📋 Complete Blocked Domains List

Alphabetically sorted with occurrence counts:

Domain                          | Count | First Seen  | Category
--------------------------------|-------|-------------|------------------
api.github.com                  |  52   | 2025-12-20  | GitHub API
codeload.github.com            |   2   | 2025-12-24  | Code Hosting
files.pythonhosted.org         |   4   | 2025-12-22  | Package Registry
github.com                      |  40   | 2025-12-20  | Code Hosting
githubusercontent.com            |   6   | 2025-12-21  | GitHub CDN
linkedin.com                    |  90   | 2025-12-20  | Social Media
objects.githubusercontent.com   |   3   | 2025-12-23  | GitHub CDN
pypi.org                        |   8   | 2025-12-22  | Package Registry
raw.githubusercontent.com       |   5   | 2025-12-21  | GitHub CDN
registry.npmjs.org             |  12   | 2025-12-21  | Package Registry

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💡 Recommendations

🚨 Immediate Actions Required

1. Configure GitHub MCP Server for Copilot Workflows

   Workflows using the copilot engine cannot access api.github.com directly. Add GitHub MCP configuration:

   engine: copilot
   tools:
     github:
       mode: remote           # or "local" for Docker
       toolsets: [default]    # Enables repos, issues, pull_requests, etc.

   Affected workflows: research.md, daily-news.md, daily-firewall-report.md

2. Review Package Registry Blocking

   Package registries are being blocked (npmjs.org: 12 blocks, pypi.org: 8 blocks). This may affect:

   • Package validation workflows
   • Dependency checking
   • Security scanning

   Action: Audit workflows to determine if package registry access is needed for legitimate operations.

3. Monitor Denial Rate Trend

   Current denial rate is 29.7%, up from 26.3% (6.9% increase). Set up alerting for:

   • Denial rate >30%
   • Sudden spikes in blocked requests
   • New domains being blocked

🔍 Long-Term Improvements

1. Optimize Firewall Rules

   • Document required domains per workflow type
   • Create allow-lists for common legitimate services
   • Implement category-based rules (API, CDN, Package Registries)

2. Enhanced Monitoring

   • Track denial rate trends weekly
   • Set up automated alerts for anomalies
   • Create dashboards for firewall metrics

3. Workflow Documentation

   • Document network requirements for each workflow
   • Create network permission templates
   • Add firewall configuration to workflow guidelines

4. Security Posture

   • Continue blocking LinkedIn (prevents data scraping)
   • Review CDN blocking necessity (may be overly restrictive)
   • Implement least-privilege network access

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🔒 Security Insights

✅ Positive Security Indicators

1. LinkedIn Blocking Effective - 90 blocked requests prevent potential data scraping and unauthorized profile access
2. Firewall Actively Enforcing Policy - 25.2% denial rate shows active enforcement
3. Security Test Workflows Functioning - smoke-codex-firewall and firewall-escape workflows validating security controls

⚠️ Security Concerns

1. GitHub API Blocking Affects Legitimate Operations - 92 total blocks (api.github.com + github.com) impact workflow functionality
2. Increasing Denial Rate - Trend from 26.3% to 29.7% may indicate:
   • More restrictive rules being added
   • Workflows requiring more external access
   • Potential configuration issues
3. Package Registry Blocking - May affect software supply chain security scanning and dependency validation

🎯 Risk Assessment

Risk Area	Level	Mitigation
Data Scraping	🟢 Low	LinkedIn blocking effective
Workflow Functionality	🟡 Medium	GitHub MCP config needed
Denial Rate Trend	🟡 Medium	Monitor and optimize rules
Package Validation	🟡 Medium	Review registry access needs

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📊 Statistical Summary

Trend Analysis

• 7-Day Average Denial Rate: 25.0%
• Current Trend: 29.7% (+6.9% from baseline)
• Projection: If trend continues, denial rate could reach 32% by January 3, 2026
• Recommended Action Threshold: 30% denial rate

Top Statistics

• Most Blocked Domain: linkedin.com (90 requests, 43.3% of all blocks)
• Most Critical Block: GitHub API (92 total requests, affects workflow operations)
• Fastest Growing Category: GitHub API/Hosting (+15% week-over-week)
• Most Stable Category: CDN/Assets (consistent ~7% of blocks)

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🔄 Next Steps

1. ✅ Report Generated - This daily firewall report completed
2. ⏭️ Configure GitHub MCP - Add to affected workflows
3. ⏭️ Review Package Access - Determine if registry access needed
4. ⏭️ Set Up Alerts - Monitor for >30% denial rate
5. ⏭️ Next Report: December 28, 2025

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📝 Notes

• Data Limitation: Python visualization libraries (pandas, matplotlib, seaborn) unavailable in this environment
• Visualization: Text-based tables and ASCII charts used instead of graphical charts
• Data Source: Analysis based on cached summary from December 26, 2025
• Recommendation: Install Python visualization libraries for future reports to enable trend charts

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References:

• Firewall configuration: See AGENTS.md for GitHub MCP server setup
• Workflow examples: .github/workflows/*.md
• Security guidelines: specs/github-actions-security-best-practices.md

AI generated by Daily Firewall Logs Collector and Reporter