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Bugzilla #2080798 Ca Certificate Compliance Incident Self Reported Incident Security Incident

Sectigo preliminary incident report: subordinate CA certificate used to sign OCSP responses without digitalSignature key usage

ASSIGNED Sectigo
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AI Summary

Sectigo opened this bug as a preliminary incident report about a subordinate CA certificate issue. Sectigo said that for at least one subordinate CA certificate, OCSP responses were being signed by the CA private key even though the subordinate CA certificate did not assert the digitalSignature key usage. The report says Sectigo is currently investigating the incident. The comment identifies the source of the incident disclosure as a third-party report, but the bug itself was opened by Sectigo. No remediation or closure is recorded in the thread provided.

Model: gpt-5.4-mini Generated: 2026-10-20 17:45 UTC Confidence: 0.91 1 comment
Chronology
  1. Sectigo reported that at least one subordinate CA certificate was used to sign OCSP responses without asserting digitalSignature key usage.
Thread Activity
  1. Sectigo — Sectigo filed a preliminary incident report stating it was investigating the OCSP-signing/key-usage issue and noted the disclosure source was a third-party report.
Participants
Sectigo
External References
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