[ Bounty $4k ] [ Middleware ] Redact Authorization header in structured logs — request logging

[alex-huma-orch]

Bug Details

Affected component: ASGI middleware stack for request logging.
Trigger: A request passes through the shared middleware chain under the request logging condition.
Observed behavior: sensitive operational fields can reach a response, log entry, or integration payload before filtering is applied.
Expected behavior: sensitive fields are filtered before serialization, logging, or webhook payload shaping.
Impact: cross-request isolation, request integrity, logging safety, or resource controls can fail before the application handler runs.

Fix

Apply the middleware decision before expensive or stateful work, clear request-local state in finally blocks, and test success plus error paths. Specifically cover the Redact Authorization header in structured logs condition in request logging so future changes cannot reintroduce the gap.

Acceptance Criteria

• Middleware tests cover normal requests, rejected requests, and exception paths without leaking state.
• Logs and response headers show the corrected behavior without exposing sensitive request material.

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/bounty $4000

[Karry2019web]

/claim #3899 via #3903

Implemented Authorization header redaction in LoggingMiddleware:

• Replaces the Authorization header value with Bearer <redacted> before the downstream handler runs
• Prevents bearer token leakage into structured JSON log output
• Covered normal requests, rejected requests, and exception paths

[neuralmint]

/claim #3899 via #3900

[jshaofa-ui]

Solution Proposal: Redact Authorization Header in Structured Logs

Problem Analysis

Authorization headers are being logged in structured logs, potentially exposing sensitive credentials (API keys, tokens) in log aggregation systems.

Proposed Fix

1. Header Redaction Middleware: Add middleware that redacts Authorization and other sensitive headers before logging
2. Configurable Redaction: Allow teams to configure additional headers to redact
3. Hash-based Logging: Log a hash of the header value instead of the full value for debugging
4. Audit Trail: Log redaction events for security auditing

Code Structure

class LogRedactionMiddleware:
    SENSITIVE_HEADERS = {
        "authorization", "x-api-key", "x-auth-token",
        "cookie", "set-cookie", "proxy-authorization"
    }
    
    def redact_headers(self, headers: dict) -> dict:
        redacted = {}
        for key, value in headers.items():
            if key.lower() in self.SENSITIVE_HEADERS:
                # Log hash for debugging instead of actual value
                redacted[key] = f"<redacted:{hashlib.sha256(value.encode()).hexdigest()[:8]}>"
            else:
                redacted[key] = value
        return redacted

Timeline: 2 days

Pricing: $4,000 (bounty amount)

We have starred the repository and meet all bounty requirements.