Attack Surface Management · Service Mesh Security · ML Runtime Security · Authorization Boundaries · Coordinated Vulnerability Disclosure
Senior cybersecurity practitioner, independent vulnerability researcher, and open-source security tooling contributor.
Founder of NetGuard 24/7 LLC · coordinated disclosure, cybersecurity tooling, threat intelligence.
Selected upstream remediations and coordinated disclosures where I authored or co-authored the patch, the advisory, or both.
| Finding | Project | Status | Disposition |
|---|---|---|---|
Envoy jwt_authn authentication bypass · CWE-287 |
envoyproxy/envoy | ✅ Merged | PR #43630 · 6d005fe |
| CERT/CC VU#692236 · multi-vendor coordination | React ecosystem | 🟡 Coordinated | reactghost.com |
Featured: Envoy jwt_authn confused-deputy fix. Authored the fix for an authorization-boundary failure in Envoy's JWT filter where extract_only_without_validation paired with claim_to_headers produced HTTP headers indistinguishable from cryptographically validated ones, letting a forged alg:none token satisfy downstream RBAC. Reported through Envoy's private security advisory process (GHSA-gr4r-79wp-5w3x, reporter credit accepted); the public PR added a verification_status_header field with runtime-guarded staged rollout. Merged into main on May 4, 2026 as commit 6d005fe.
Active coordinated-disclosure patches submitted upstream to Google and OSS projects. States current as of July 2026.
| Contribution | Project | State | Reference |
|---|---|---|---|
| TFLite uint64 external-offset overflow hardening · CWE-190 | tensorflow/tensorflow | Approved, ready to pull; imported to LiteRT | PR #116631 · LiteRT #8492 |
| PayPal REST API secret detector + OAuth2 validator | google/osv-scalibr | In review | PR #1815 |
flatbuffer_utils out-of-range Buffer offset/size validation |
google-ai-edge/LiteRT | Open | PR #7028 |
interpreter_builder uint64 overflow (LiteRT-side) |
google-ai-edge/LiteRT | Open | PR #8183 |
Additional memory-safety and path-traversal disclosures in TensorFlow, LiteRT, and MediaPipe are under vendor review.
| Project | Description | Stack |
|---|---|---|
| CitrixScan | Citrix NetScaler ADC/Gateway security scanner. 25 CVEs, 10 fingerprint vectors, GZIP timestamp analysis, IoC detection. | Python |
| cve-2026-1731-scanner | Passive scanner for CVE-2026-1731 (BeyondTrust Remote Support / PRA pre-auth RCE). Defensive and educational use. | Python |
Envoy jwt_authn patch |
Upstream contribution: verification_status_header field, runtime guard, RBAC integration example, security-considerations docs. |
C++ |
Cybersecurity Research · Threat Intelligence · Coordinated Disclosure