harden L6 token auth and document weekly run#316
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Harden L6 Engagement Engine token authentication and real-time WebSocket handshakes to reject weak JWT secrets in production. Compile July 2026 weekly report capturing cross-layer impacts and add targeted security tests verifying the rejection of weak secrets. Co-authored-by: dcplatforms <10982057+dcplatforms@users.noreply.github.com>
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Cursor Bugbot has reviewed your changes using high effort and found 2 potential issues.
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Reviewed by Cursor Bugbot for commit cc66610. Configure here.
| console.error('[Security] JWT_SECRET is weak, insecure, or default. Blocking authenticated endpoint access in production.'); | ||
| return res.status(500).json({ error: 'Internal server configuration error: Insecure JWT secret.' }); | ||
| } | ||
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Weak secret check before 401
Medium Severity
In production with a weak JWT_SECRET, authenticateToken returns HTTP 500 before checking for a bearer token, so requests without Authorization get a configuration error instead of 401. That diverges from L10’s middleware order and breaks engagement_engine.test.js expectations when NODE_ENV is production.
Reviewed by Cursor Bugbot for commit cc66610. Configure here.
| const isWeakSecret = (secret) => { | ||
| if (!secret) return true; | ||
| return WEAK_SECRETS.includes(secret.toLowerCase().trim()); | ||
| }; |
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Whitespace JWT secret bypasses weak check
Medium Severity
In production, isWeakSecret treats only falsy JWT_SECRET values as weak. A whitespace-only JWT_SECRET is truthy for the || default on load, trims to an empty string, is not on WEAK_SECRETS, and is considered strong—so HTTP and WebSocket auth keep running with an effectively empty signing key.
Reviewed by Cursor Bugbot for commit cc66610. Configure here.
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This commit implements the L6 Engagement Engine security hardening of JWT token authentication and WebSocket connection handshakes in production environments to reject weak/default secrets, synchronized with L5/L10. It also compiles the July 2026 weekly PO product update report and adds a dedicated security test suite.
PR created automatically by Jules for task 9761156183148989921 started by @dcplatforms
Note
Medium Risk
Changes authentication for all protected HTTP routes and WebSockets in production; misconfigured deploys will fail closed with 500/disconnect until a strong secret is set.
Overview
L6 Engagement Engine now blocks insecure JWT configuration in production, aligned with L5/L10 hardening.
When
NODE_ENV=production,authenticateTokenreturns 500 ifJWT_SECRETis missing, default, or on a denylist (dev_secret_change_in_production,secret, etc.). Socket.IO handshakes apply the same rule and disconnect instead of verifying tokens. Non-production behavior is unchanged.Adds
security.test.js(mocked Redis/Kafka/pg) covering/health, weak/default secrets in production, and a strong-secret success path on/leaderboard. Also adds the July 2026 v5.18.0 weekly engineering report documenting the JWT work and cross-layer context.Reviewed by Cursor Bugbot for commit cc66610. Configure here.