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CVE-2026-91200

8.8 · HIGH

DevSpace through 6.3.21 fails to reject parent-directory segments in tar entry names from the in-pod sync stream.

Published Sep 14, 2026CWE-22EPSS 0.65%

Overview

CVE-2026-91200 is a high-severity vulnerability. It was published on September 14, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/devspace-sh/devspaceGitHubgithub.com/devspace-sh/devspace/blob/7f272dcf90653fa9b42bc4347f7f3f9a52b0e8b5/pkg/devspace/sync/tar.go#L68-L82GitHubgithub.com/devspace-sh/devspace/blob/7f272dcf90653fa9b42bc4347f7f3f9a52b0e8b5/pkg/devspace/sync/util.go#L9-L11GitHubgithub.com/devspace-sh/devspace/issues/3290Refwww.vulncheck.com/advisories/devspace-through-6.3.21-path-traversal-via-tar-extraction

How CyberStrike helps

Frequently asked questions

What is CVE-2026-91200?

CVE-2026-91200 is a high-severity vulnerability. It was published on September 14, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).

How severe is CVE-2026-91200?

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-91200?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-91200?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-91200 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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