Source-linked reports: Amounts and outcomes come from the original reports and linked replies.
CloudPrinters.sa: an auth refresh-token bug drove about 2 billion D1 writes and a ~$2,078 charge.
Community user salman1 says D1 normally costs CloudPrinters.sa nothing, but over the August 16 to September 15, 2026 cycle an auth bug rewrote one account's entire refresh-token history every time a stale token was retried, generating roughly 2 billion D1 writes. He says the revoke logic and retry loop were fixed and that a billing ticket requests a courtesy credit for the D1 write overage of about $2,078.
What happened
- Reported cause
- Write volume
- Incident date
- Date not recorded
- First reported
- 2026-09-16
- Billing outcome
- Request submittedAuthor-reported
- Case progress
- Not established
- Public Cloudflare reply
- Not linked
Latest reported outcome
The author says a billing ticket with a full write-up requests a courtesy credit for the D1 write overage; an MVP replied that support will respond on the ticket.
View this update in the timelineOriginal sources
Each entry links to the report or reply it describes.
Case timeline
Author reports the D1 charge
Open original sourceThe author attributes roughly 2 billion D1 writes to a refresh-token revoke bug and says a billing ticket requests a courtesy credit for the ~$2,078 overage.
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