← Sectigo cases
Bugzilla #1736064 Certificate Misissuance

Sectigo: Subject field with unvalidated information included in certificates

RESOLVED FIXED Sectigo
AI Summary

Sectigo identified a misissuance issue where OV and EV certificates contained the postOfficeBox subject field, which is not compliant with the EV Guidelines. The problem was discovered during an internal code review, leading to the revocation of 453 affected certificates. A code fix was deployed to prevent future issuance of such certificates. The affected certificates were scheduled for revocation on October 16, 2021, and the issue has since been resolved with the implementation of stricter validation checks.

Model: gpt-4o-mini Generated: 2026-06-13 20:57 UTC Confidence: 1.00
Chronology
  1. Internal code review reveals potential to issue certificates with postOfficeBox.
  2. Fix deployed.
  3. Investigation of corpus of certificates begins.
  4. Revocation of all affected certificates scheduled.
  5. Allowed Subject Fields release went live.
Participants
Tim Callan darkkiller@gmail.com matthias@thisisntrocket.science ryan.sleevi@gmail.com bwilson@mozilla.com
External References
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