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

Quick assessment

Affected
devspace devspace
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

DevSpace 6.3.21 及更早版本未能拒绝来自 Pod 内同步流的 tar 条目名称中的父目录段。攻击者若操控恶意容器，可以通过流式传输包含遍历序列的 tar 条目，从而在开发者工作站上写入任意文件，进而实现代码执行。

CVSS 8.8 · High
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I. Basic Information for CVE-2026-91200

Vulnerability Information
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Vulnerability Title
DevSpace through 6.3.21 Path Traversal via tar extraction
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
devspace devspace 0 ~ 6.3.21 -

II. Public POCs for CVE-2026-91200

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-91200

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Vendor Advisories for CVE-2026-91200 (2)

Vendor Pages for CVE-2026-91200 (1)

Other References for CVE-2026-91200 (2)

IV. Related Vulnerabilities

Same product: devspace
Same weakness: CWE-22

V. Comments for CVE-2026-91200

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