What’s Vulnerable › Vulnerabilities

CVE-2026-91200: DevSpace through 6.3.21 Path Traversal via tar extraction

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-14 · updated 2026-09-23
• Weakness: CWE-22

Description

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: through 6.3.21

References

• https://github.com/devspace-sh/devspace
• https://github.com/devspace-sh/devspace/blob/7f272dcf90653fa9b42bc4347f7f3f9a52b0e8b5/pkg/devspace/sync/tar.go#L68-L82
• https://github.com/devspace-sh/devspace/blob/7f272dcf90653fa9b42bc4347f7f3f9a52b0e8b5/pkg/devspace/sync/util.go#L9-L11
• https://github.com/devspace-sh/devspace/issues/3290
• https://www.vulncheck.com/advisories/devspace-through-6.3.21-path-traversal-via-tar-extraction

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