CVE-2026-91200: Devspace

High severity, CVSS 8.8. EPSS: 0.7% chance of exploitation in the next 30 days.

DevSpace through 6.3.21 fails to reject parent-directory segments in tar entry names from the in-pod sync stream. Attackers operating a malicious container can stream tar entries with traversal sequences to write arbitrary files on the developer workstation, enabling code execution.

Affected products

• Devspace Devspace: up to and including 6.3.21

Published 2026-09-14. Last modified 2026-09-23.