2026-06-17
Microsoft
From package to postinstall payload: Inside the Mastra npm supply chain compromise by Sapphire Sleet
#Mastra
#NPM
#SapphireSleet
SapphireSleet
Also known as
| Name | Named by | AKA | First seen | Last seen |
|---|---|---|---|---|
| Copernicium | Microsoft | APT38 | 2022-11-07 | 2022-11-07 |
| JINX-0164 | Wiz | SapphireSleet | 2026-05-27 | 2026-05-27 |
| SapphireSleet | Microsoft | Copernicium | 2023-04-19 | 2026-06-17 |