🛡️ Sentinel: [HIGH] Fix quoted secret redaction bypass

[google-labs-jules]

🚨 Severity: HIGH

💡 Vulnerability:

The redaction regular expression (KV_PATTERN) used in src/core/security/redaction.ts for sanitizing key=value pairs failed to match and redact secret values when they were surrounded by quotes (e.g., password="mysecret"). The character class [^\s,'"]+ explicitly excludes single and double quotes, meaning it would stop matching as soon as it hit a quote, effectively bypassing redaction and potentially leaking sensitive credentials in audit logs.

🎯 Impact:

If a user provided a quoted secret in configuration, shell inputs, or environment variables, that raw quoted secret could have been logged in plain text to the audit trails or terminal outputs.

🔧 Fix:

Updated KV_PATTERN to correctly account for string literals by including "[^"]*" and '[^']*' in the capture group for the value:

const KV_PATTERN = /(\b(?:token|secret|password|api[_-]?key)\b\s*[:=]\s*)("[^"]*"|'[^']*'|[^\s,'"]+)/gi;

✅ Verification:

• Ran targeted unit tests bun test tests/unit/context-audit-redaction.test.ts and bun test tests/unit/core/tools/headless-payload.test.ts.
• Manually tested in a bash shell to verify that 'password="mysecret"' is successfully replaced with 'password=[REDACTED]'.
• Ran the full test suite (bun run test:full) to ensure no regressions.
• Logged the critical learning to .jules/sentinel.md.

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PR created automatically by Jules for task 7809680076242199412 started by @YoungSx

[google-labs-jules]

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