Dependency Security Remediation

Summary

This session remediated all high-severity and all currently auto-fixable moderate dependency findings in the monorepo dependency graph.

Changes Performed

• Updated root dependency floors for vite, fastify, and postcss via npm overrides.
• Updated backend package floors for NestJS runtime/testing packages, @nestjs/cli, @nestjs/schematics, and drizzle-orm.
• Updated frontend package floors for next and eslint-config-next to the latest stable line.
• Regenerated the workspace lockfile with npm install --package-lock-only --ignore-scripts.
• Applied remaining non-breaking audit remediations with npm audit fix --package-lock-only --ignore-scripts.
• Synchronized the workspace install with npm install --ignore-scripts.

Validation

• npm audit: 5 moderate, 0 high, 0 critical
• Backend tests: 45 passed, 0 failed
• Frontend tests: 6 passed, 0 failed
• Docs build: pass (vitepress build)

Risk Notes

• Remaining vulnerabilities are limited to two upstream-pinned stable dependency chains:
• next@16.2.6 still installs nested postcss@8.4.31, and the latest stable Next release on npm does not yet remove that pin.
• vitepress@1.6.4 still installs nested vite@5.4.21 and esbuild@0.21.5; npm reports no stable fix on that line.
• These remaining findings are moderate-severity and should be tracked as a documented security exception until a stable Next/VitePress release lands or a prerelease hardening branch is approved.
• Runtime integrity requirements are unchanged; this session focused on dependency posture only.

Outcome

• High-severity dependency audit issues are remediated in current lockfile state.
• The repository is reduced to two residual moderate-severity upstream issues on the latest stable lines.
• Logging chronology is preserved by adding a new log entry for newly implemented work.