---
id: CVE-2026-91200
title: >-
  DevSpace through 6.3.21 fails to reject parent-directory segments in tar entry
  names from the in-pod sync stream
summary: >-
  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 d…
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'
cwe:
  - CWE-22
vendor: devspace
product: devspace
affected:
  - devspace <= 6.3.21
published: '2026-09-14'
updated: '2026-09-23'
sourceUpdated: '2026-09-23T17:17:47.790'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-91200'
references:
  - url: 'https://github.com/devspace-sh/devspace'
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/devspace-sh/devspace/blob/7f272dcf90653fa9b42bc4347f7f3f9a52b0e8b5/pkg/devspace/sync/tar.go#L68-L82
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/devspace-sh/devspace/blob/7f272dcf90653fa9b42bc4347f7f3f9a52b0e8b5/pkg/devspace/sync/util.go#L9-L11
    label: disclosure@vulncheck.com
  - url: 'https://github.com/devspace-sh/devspace/issues/3290'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/devspace-through-6.3.21-path-traversal-via-tar-extraction
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
epss: 0.00651
epssPercentile: 0.49052
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-15T13:47:03.145976Z'
ingestedAt: '2026-09-14T23:17:06.517Z'
---

## Overview

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

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.