Comprehensive security hardening for self-hosted deployments#91
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dietrichmax merged 3 commits intomainfrom Feb 21, 2026
Merged
Comprehensive security hardening for self-hosted deployments#91dietrichmax merged 3 commits intomainfrom
dietrichmax merged 3 commits intomainfrom
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dietrichmax
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Feb 21, 2026
dietrichmax
commented
- SSRF prevention: URL validation (IPv4/IPv6/mapped/ULA/link-local/decimal/hex), redirect blocking on tile and marker fetches, tileLayers and subdomain validation
- SVG injection prevention: escapeXml on all user-interpolated SVG attributes including marker colors, text, attribution
- Auth hardening: HMAC-signed demo cookies, timing-safe API key comparison
- Resource limits: pixel budget (25MP), Sharp limitInputPixels, cache maxKeys, feature count cap (1000), zoom/timeout/tileRequestLimit caps, format allowlist
- Security headers: CSP without unsafe-inline (extracted styles to demo.css), strict Referrer-Policy, HSTS, X-Frame-Options, Permissions-Policy
- Log safety: API key redaction in request logs and error handler
- Rate limiting on demo-map proxy, cookie path scoping
- Tile header sanitization via allowlist
- GitHub Actions bumped to latest major versions (checkout@v4, setup-node@v4, build-push-action@v6)
- SSRF prevention: URL validation (IPv4/IPv6/mapped/ULA/link-local/decimal/hex), redirect blocking on tile and marker fetches, tileLayers and subdomain validation - SVG injection prevention: escapeXml on all user-interpolated SVG attributes including marker colors, text, attribution - Auth hardening: HMAC-signed demo cookies, timing-safe API key comparison - Resource limits: pixel budget (25MP), Sharp limitInputPixels, cache maxKeys, feature count cap (1000), zoom/timeout/tileRequestLimit caps, format allowlist - Security headers: CSP without unsafe-inline (extracted styles to demo.css), strict Referrer-Policy, HSTS, X-Frame-Options, Permissions-Policy - Log safety: API key redaction in request logs and error handler - Rate limiting on demo-map proxy, cookie path scoping - Tile header sanitization via allowlist - GitHub Actions bumped to latest major versions (checkout@v4, setup-node@v4, build-push-action@v6)
dietrichmax
added
enhancement
![github-advanced-security[bot]](https://avatars.githubusercontent.com/in/57789?s=60&v=4){kind=small}
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