GlobalSign incident

SSL errors occur for TLS certificates issued on December 1

Minor Resolved View vendor source →

GlobalSign experienced a minor incident on December 1, 2025 affecting Certificate Issuance and Certificate Issuance, lasting 2h 39m. The incident has been resolved; the full update timeline is below.

Started
Dec 01, 2025, 10:33 AM UTC
Resolved
Dec 01, 2025, 01:12 PM UTC
Duration
2h 39m
Detected by Pingoru
Dec 01, 2025, 10:33 AM UTC

Affected components

Certificate IssuanceCertificate Issuance

Update timeline

  1. identified Dec 01, 2025, 10:33 AM UTC

    We are aware of an issue affecting TLS certificates issued on 1st December which can cause them to not be trusted by some browsers. This is caused by the trust status of some of the 2027 CT Logs. We are urgently removing affected logs from our configuration. Re-issuing affected certificates will resolve the problem.

  2. resolved Dec 01, 2025, 01:12 PM UTC

    The issue affecting TLS certificates issued on or after December 1 has been resolved. All affected CT logs have been removed from our configuration, and reissuing certificates restores trust in all major browsers. If you have not yet reissued your certificate, please do so to ensure proper functionality. Services are operating normally.