CVE-2026-91200 DevSpace - Path Traversal & Remote Code Execution

DevSpace <= 6.3.21 contains a path traversal vulnerability caused by failure to reject parent-directory segments in tar entry names from the in-pod sync stream, letting attackers operating malicious containers write arbitrary files and execute code on the developer workstation, exploit requires attacker to control a container.

CVSS base score 8.8 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.65% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Path Traversal
Impact
Remote Code Execution, File System Write
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published
14 September 2026
Updated
15 October 2026
Weakness
CWE-22

Vendor fix

Update to the latest version beyond 6.3.21.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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