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🛡️ Sentinel: [MEDIUM] Add baseline security headers - #313

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sentinel-add-security-headers-440104720301303176
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crabcanon wants to merge 1 commit into
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sentinel-add-security-headers-440104720301303176

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@crabcanon

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🚨 Severity: MEDIUM
💡 Vulnerability: Missing baseline security headers like X-Content-Type-Options, X-Frame-Options, Strict-Transport-Security in HTTP responses, leaving the application open to MIME-sniffing, Clickjacking, and MITM attacks on older clients.
🎯 Impact: Attackers could potentially sniff content types, embed the site in a frame (Clickjacking), or intercept unencrypted traffic if users type the URL without https://.
🔧 Fix: Added standard security headers X-Content-Type-Options: nosniff, X-Frame-Options: DENY, and Strict-Transport-Security: max-age=31536000; includeSubDomains directly into the global request_context_middleware so all API responses inherit them automatically.
✅ Verification: Ran pytest suite across the workspace successfully, confirming no regressions in core logic or API middleware integration. Verified request_context.py via git diff --cached.


PR created automatically by Jules for task 440104720301303176 started by @crabcanon

…ions)

* Adds standard defense-in-depth headers globally via `request_context_middleware`
* Creates `.jules/sentinel.md` entry for the learning
* Keeps fix under 50 lines

Co-authored-by: crabcanon <3458947+crabcanon@users.noreply.github.com>
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vercel Bot commented Oct 19, 2026 •

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