June 2026: Strengthened robustness of material parsing in google/filament by hardening the Unflattener against crafted inputs and tightening bounds checks. Implemented offset validation in MaterialChunk::getDictionaryOccurrences and updated Unflattener::willOverflow to prevent out-of-bounds dereferences. This fixes a potential crash path when processing crafted .filamat files and mitigates the GHSA-v4hr-2wf7-fhpj vulnerability. No behavioral changes for valid packages; performance impact is negligible. Business value: reduces outage risk in production pipelines and lowers support burden by eliminating a class of material parsing crashes.

May 2026 — In angular/dev-infra, delivered security hardening for Firebase Preview deployments. Implemented rejection of symlinks in PR-supplied Firebase preview artifacts to prevent leakage to the public preview CDN. Patch aligns with upstream hardening and strengthens CI/CD integrity. Commit b785efd68e376786dba49010622667a434dcaaee details changes such as defensive extraction, environment-passed firebase-public-dir, strict tar handling, and removal of verbose outputs. Overall impact: reduces risk exposure in previews and increases confidence in deployment quality. Technologies/skills demonstrated: CI/CD security hardening, shell scripting, tar handling, environment-variable usage, and collaboration with upstream firebase-tools maintainers.