[bobdivx]

🚨 Severity: MEDIUM (Security Enhancements)

💡 Vulnerability: The Rust/Axum backend lacked common HTTP security headers, leaving it unnecessarily exposed to MIME sniffing, clickjacking, and inadequate HTTPS enforcement across all endpoints.

🎯 Impact: An attacker could potentially iframe the application to conduct clickjacking attacks or trick the browser into executing non-script files via MIME sniffing.

🔧 Fix: Implemented a global security_headers middleware in apps/server/src/security.rs that applies X-Content-Type-Options: nosniff, X-Frame-Options: DENY, X-XSS-Protection: 1; mode=block, and Strict-Transport-Security headers to all responses. The new middleware is injected early into the main app and worker routers.

✅ Verification:

• Validated via cargo check and cargo test that the backend tests still pass.
• Validated via vitest that frontend behavior is un-affected.
• Logged new codebase constraint findings in .jules/sentinel.md regarding Axum's strict HeaderName casing requirement.

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PR created automatically by Jules for task 16890258625200351594 started by @bobdivx

[google-labs-jules]

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[bobdivx]

Closing: same decision as #249. Security headers such as HSTS and X-Frame-Options are handled at the reverse proxy level and are not wanted in-app for now (X-XSS-Protection is also deprecated).

[google-labs-jules]

Closing: same decision as #249. Security headers such as HSTS and X-Frame-Options are handled at the reverse proxy level and are not wanted in-app for now (X-XSS-Protection is also deprecated).

Understood. Acknowledging that this work is now obsolete as security headers are managed at the reverse proxy level. Stopping work on this task.