CVE-2021-42952: Zepl

Critical severity, CVSS 9.9. EPSS: 1.6% chance of exploitation in the next 30 days.

Zepl Notebooks before 2021-10-25 are affected by a sandbox escape vulnerability. Upon launching Remote Code Execution from the Notebook, users can then use that to subsequently escape the running context sandbox and proceed to access internal Zepl assets including cloud metadata services.

Affected products

• Zepl Zepl: before 2021-10-25 (fixed in 2021-10-25)

Published 2022-02-25. Last modified 2026-07-09.