Freddie Mac · Vulnerability Disclosure

Freddie Mac Vulnerability Disclosure

Vulnerability disclosure

Freddie Mac runs a coordinated vulnerability disclosure program on Bugcrowd. A machine-readable /.well-known/security.txt is served. A dedicated security contact is published.

Freddie MacHousingMortgageLendingServicingOriginationSecondary MarketMISMOFortune 100Government-Sponsored Enterprise

Program: Bugcrowd security.txt present

Disclosure Policy

Security Contact

Contact

mailto:freddie-mac@submit.bugcrowd.com

Contact

https://privacyportal.onetrust.com/incident-portal/webforms/94b5e41a-aba0-4e51-ba48-efa19ce560a1/1b25c37a-a280-44f2-b61e-a693a33c7267

Source

Vulnerability Disclosure

generated: '2026-09-10'
method: probed
probe: true
source: well-known/freddie-mac-api-security.txt
security_txt:
  url: https://api.freddiemac.com/.well-known/security.txt
  http_status: 200
  content_type: text/plain
  fetched: '2026-09-10'
  mirror:
    url: https://api-test.freddiemac.com/.well-known/security.txt
    http_status: 200
    note: Byte-identical apart from its own Canonical line; the UAT gateway serves the same policy.
  fields_present:
  - Canonical
  - Contact
  - Expires
  - Preferred-Languages
  fields_absent:
  - Policy
  - Encryption
  - Acknowledgments
  - Hiring
  - CSAF
  expires: '2027-06-30'
  expires_valid: true
  note: RFC 9116 compliant and current. It is served ONLY from the two Apigee API gateway hosts. www.freddiemac.com,
    sf.freddiemac.com, mf.freddiemac.com, capitalmarkets.freddiemac.com and guide.freddiemac.com all 404
    on /.well-known/security.txt, and developer.freddiemac.com answers 401 on the whole /.well-known/
    space, so a researcher landing on any Freddie Mac property other than the API gateway finds nothing.
contact:
- mailto:freddie-mac@submit.bugcrowd.com
- https://privacyportal.onetrust.com/incident-portal/webforms/94b5e41a-aba0-4e51-ba48-efa19ce560a1/1b25c37a-a280-44f2-b61e-a693a33c7267
bug_bounty: true
bug_bounty_platform: Bugcrowd
bug_bounty_note: 'The Contact line routes submissions to freddie-mac@submit.bugcrowd.com, which is a Bugcrowd-managed
  intake address. There is no public program page: https://bugcrowd.com/freddie-mac returned 404 on 2026-09-10,
  so the engagement is private/invite-only rather than an open public bounty.'
policy_published: false
policy_note: 'No Policy: field is published, so a researcher is told where to send a report but not what
  scope, safe-harbour or response commitment applies.'
evidence:
- source: well-known/freddie-mac-api-security.txt
  kind: security.txt harvested verbatim 2026-09-10
  url: https://api.freddiemac.com/.well-known/security.txt
  http_status: 200
- url: https://bugcrowd.com/freddie-mac
  http_status: 404
  kind: no public Bugcrowd program page - the program is private
recommendation: 'Serve the same security.txt from www.freddiemac.com and sf.freddiemac.com, and add a
  Policy: line. Today the file only exists on the two hosts a researcher is least likely to browse to.'

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