Git History Security Audit
Date: 2026-03-02 Status: Complete - No critical issues found Previous audit: 2026-01-31
Executive Summary
Monthly git history security scan. No secrets, API keys, or sensitive credentials found. The repository remains safe for public access. All findings from the January audit have been addressed.
Changes Since Last Audit
- 974 total commits (up from ~200 at last audit)
- Git directory: 19 MB (up from 1.8 MB — healthy growth from active development)
- MongoDB credentials fully externalized to
.env(Task #18 complete) - Author now using GitHub noreply address for new commits
Scan Results
Secrets and Credentials
| Category | Status | Details |
|---|---|---|
| API Keys (AWS AKIA) | ✅ Clean | No patterns found |
| GitHub Tokens (ghp_/gho_) | ✅ Clean | No patterns found |
| Private Keys (PEM/RSA) | ✅ Clean | No key files or key material found |
| .env Files | ✅ Clean | Never committed |
| Bearer Tokens | ✅ Clean | No hardcoded tokens (only variable references) |
| MongoDB Credentials | ⚠️ Historical | admin:password placeholder in old docker-compose commits (see below) |
| S3/Cloud Credentials | ✅ Clean | Only ${VAR} references, no hardcoded values |
MongoDB Credential History
Old commits contain mongodb://admin:password@mongodb:27017 — a development placeholder. Current docker-compose uses ${MONGO_ROOT_PASSWORD} from .env. The history entries are:
- Not real credentials (intentional dev defaults)
- Documented in
.env.examplewithchangeme_use_strong_password - Not worth a history rewrite — standard practice for development
Sensitive File Extensions
No sensitive files (.pem, .key, .p12, .pfx, .credentials, .keystore, .jks, .secret) have ever been committed.
Infrastructure Details in History
Staging deployment scripts reference generic patterns (ec2-user@<PUBLIC_IP>, $STAGING_IP) — no hardcoded IP addresses or key file paths in committed code. Staging connection details exist only in local config (CLAUDE.md, which is gitignored).
Author Identities
| Identity | Type | Commits | Notes |
|---|---|---|---|
| Shanon Clemmons (noreply) | GitHub noreply | Current | Active, recommended |
| Shanon Clemmons (personal) | 2 personal emails | Historical | In old commits, cannot be removed without history rewrite |
| dependabot[bot] | Bot | 60 | Automated dependency updates |
| Claude | Co-author | 3 | AI pair programming co-author |
Note on personal emails: Two personal email addresses appear in historical commits. These are inherent to git's design and cannot be removed without a full history rewrite (git filter-repo), which would invalidate all existing forks, PRs, and references. The GitHub noreply address is now used for all new commits. This is an acceptable tradeoff for a public repository.
Repository Size
| Metric | Value |
|---|---|
| Git directory | 19 MB |
| Loose objects | 2,337 (11.18 MB) |
| Packed objects | 7,608 (6.31 MB) |
| Pack files | 4 |
| Garbage | 0 |
| Total commits | 974 |
No unusually large blobs or orphaned objects detected. Growth since last audit is proportional to development activity.
.gitignore Coverage
| Category | Status | Pattern |
|---|---|---|
| FITS data | ✅ | data/, data/mast/, data-agent*/ |
| Environment files | ✅ | .env, .env.local, .env.*.local, *.env |
| Node modules | ✅ | node_modules/, build/, dist/ |
| Python artifacts | ✅ | __pycache__/, venv/, .venv/ |
| .NET build output | ✅ | bin/, obj/ |
| IDE config | ✅ | .vscode/, .idea/ |
| Credentials safety net | ✅ | *.pem, *.key, *.p12, *.pfx, credentials.json, secrets.json, **/secrets/ |
| Claude Code | ✅ | .claude/, CLAUDE.md |
| Test artifacts | ✅ | test-results/, playwright-report/, coverage.cobertura.xml |
| Docker runtime | ✅ | *.pid, *.log |
| Docs site | ✅ | site/ |
No gaps identified. The .gitignore has good defense-in-depth coverage.
Comparison with Previous Audit
| Finding | Jan 2026 | Mar 2026 | Status |
|---|---|---|---|
| Hardcoded MongoDB creds | ⚠️ Active | ✅ Fixed | Externalized to .env |
| Email addresses in history | ⚠️ Exposed | ⚠️ Historical | Now using noreply for new commits |
| Large orphaned blobs | ✅ Cleaned | ✅ Clean | No new orphans |
| .gitignore gaps | ⚠️ Minor | ✅ Complete | All recommendations from Jan adopted |
| API keys/tokens | ✅ Clean | ✅ Clean | No change |
Action Items
Resolved Since Last Audit
- ~~MongoDB credentials externalized~~ (Task #18 — complete)
- ~~.gitignore additions~~ (
.env, credentials safety net — complete) - ~~Switch to GitHub noreply email~~ (complete)
Ongoing
- Monthly audit: Next scheduled for 2026-04-01
- Email in history: Accepted risk — noreply used for all new commits
Conclusion
The repository remains clean and safe for public access. All action items from the January audit are resolved. No new security concerns identified.