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CVE-2026-124584— wummel patool Gzip Extraction fileutil.py extract_gzip symlink

Quick assessment

Affected
wummel patool
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.

在 wummel patool 4.1.0 中发现了一个漏洞。该漏洞影响组件"Gzip 提取处理器”中文件 patoolib/fileutil.py 的 extract_gzip 函数。攻击者通过操纵可触发符号链接跟随（symlink following）问题。利用此漏洞需要本地访问权限。研究人员声称已向该项目仓库提交了一份 GHSA（GitHub 安全公告）。

CVSS 4.4 · Medium EPSS 0.14% · P3

Possible ATT&CK Techniques 2 AI

T1086 T1083 · File and Directory Discovery

Affected Version Matrix 1

VendorProduct Version RangeStatus
wummel patool 4.1.0 affected
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I. Basic Information for CVE-2026-124584

Vulnerability Information
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Vulnerability Title
wummel patool Gzip Extraction fileutil.py extract_gzip symlink
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability has been found in wummel patool 4.1.0. This vulnerability affects the function extract_gzip of the file patoolib/fileutil.py of the component Gzip Extraction Handler. The manipulation leads to symlink following. Local access is required to approach this attack. The researcher claims to have submitted a GHSA on the repository of the project.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-61
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
wummel patool 4.1.0 cpe:2.3:a:wummel:patool:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-124584

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-124584

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Vendor Advisories for CVE-2026-124584 (1)

Other References for CVE-2026-124584 (4)

IV. Related Vulnerabilities

Same product: patool
Same vendor: wummel
Same weakness: CWE-61