REST API - Service Degradation
Incident
Report for Cybersource
Postmortem
Clients and merchants can access the Post Incident Report with their Support Center login credentials at the following link
Resolved
The issue affecting the REST API Service has now been fully resolved. Cybersource is conducting an internal review of the events to mitigate future occurrences.
Reported Start Time:13 March 2026
Reported End Time: 16 March 2026 at ~17:47 GMT
Impact: Customers are now able to use the REST API Service as normal.
Next Update: No further updates, issue resolved.
Please do not hesitate to contact the Cybersource support team if you have any questions or concerns.
Cybersource Support Center
Incident #: EPS-36872
Reported Start Time:13 March 2026
Reported End Time: 16 March 2026 at ~17:47 GMT
Impact: Customers are now able to use the REST API Service as normal.
Next Update: No further updates, issue resolved.
Please do not hesitate to contact the Cybersource support team if you have any questions or concerns.
Cybersource Support Center
Incident #: EPS-36872
Monitoring
A fix has been implemented and is currently being rolled out through production. We are monitoring closely as the implementation completes.
Impact:
Certain merchants may experience issues with REST API when submitting an IPv6 IP address in the "deviceInformation.ipAddress" field. Merchants may receive field validation errors resulting transaction failures.
As a workaround, merchants can submit transactions using IPv4 addresses only or leaving the "deviceInformation.ipAddress" field blank until resolved.
Reported Start Time: 13 March 2026
Next Update: As current status changes.
We regret any inconvenience this may cause for our customers. We will provide regular updates until the issue is mitigated.
Please do not hesitate to contact the Cybersource support team if you have any questions or concerns.
Cybersource Support Center
Incident #:EPS-36872
Impact:
Certain merchants may experience issues with REST API when submitting an IPv6 IP address in the "deviceInformation.ipAddress" field. Merchants may receive field validation errors resulting transaction failures.
As a workaround, merchants can submit transactions using IPv4 addresses only or leaving the "deviceInformation.ipAddress" field blank until resolved.
Reported Start Time: 13 March 2026
Next Update: As current status changes.
We regret any inconvenience this may cause for our customers. We will provide regular updates until the issue is mitigated.
Please do not hesitate to contact the Cybersource support team if you have any questions or concerns.
Cybersource Support Center
Incident #:EPS-36872
Update
We continue to investigate the cause and working urgently to resolve the issue.
Impact: Certain merchants may experience issues with REST API when submitting an IPv6 IP address in the "deviceInformation.ipAddress" field. Merchants may receive field validation errors resulting transaction failures.
As a workaround, merchants can submit transactions using IPv4 addresses only or leaving the "deviceInformation.ipAddress" field blank until resolved.
Reported Start Time: 13 March 2026
Next Update: As current status changes.
We regret any inconvenience this may cause for our customers. We will provide regular updates until the issue is mitigated.
Please do not hesitate to contact the Cybersource support team if you have any questions or concerns.
Cybersource Support Center
Incident #:TBD
Impact: Certain merchants may experience issues with REST API when submitting an IPv6 IP address in the "deviceInformation.ipAddress" field. Merchants may receive field validation errors resulting transaction failures.
As a workaround, merchants can submit transactions using IPv4 addresses only or leaving the "deviceInformation.ipAddress" field blank until resolved.
Reported Start Time: 13 March 2026
Next Update: As current status changes.
We regret any inconvenience this may cause for our customers. We will provide regular updates until the issue is mitigated.
Please do not hesitate to contact the Cybersource support team if you have any questions or concerns.
Cybersource Support Center
Incident #:TBD
Investigating
Cybersource is aware of an issue that is currently affecting some merchants using REST API. We are investigating the cause and working urgently to resolve the issue.
Impact: Certain merchants may experience issues with REST API when submitting an IPv6 IP address in the "deviceInformation.ipAddress" field. Merchants may receive field validation errors resulting transaction failures.
As a workaround, merchants can submit transactions using IPv4 addresses only or leaving the "deviceInformation.ipAddress" field blank until resolved.
Reported Start Time: 13 March 2026
Next Update: Within 60 minutes.
We regret any inconvenience this may cause for our customers. We will provide regular updates until the issue is mitigated.
Please do not hesitate to contact the Cybersource support team if you have any questions or concerns.
Cybersource Support Center
Incident #: TBD
Impact: Certain merchants may experience issues with REST API when submitting an IPv6 IP address in the "deviceInformation.ipAddress" field. Merchants may receive field validation errors resulting transaction failures.
As a workaround, merchants can submit transactions using IPv4 addresses only or leaving the "deviceInformation.ipAddress" field blank until resolved.
Reported Start Time: 13 March 2026
Next Update: Within 60 minutes.
We regret any inconvenience this may cause for our customers. We will provide regular updates until the issue is mitigated.
Please do not hesitate to contact the Cybersource support team if you have any questions or concerns.
Cybersource Support Center
Incident #: TBD
This incident affected: API Connection/Endpoints (Rest API).