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CVE-2026-108540— OpenSpug File Transfer transfer os command injection

Quick assessment

Affected
OpenSpug Spug
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 OpenSpug Spug 版本 3.4.0/4.0.1 及之前版本中发现了一个漏洞。该漏洞影响文件传输组件中的 /exec/transfer 文件的某个未知函数。执行特定操作可导致操作系统命令注入。攻击可能通过远程方式发起。目前该漏洞的利用代码已被公开，可能被恶意利用。厂商在早期已获知此漏洞披露信息，但未作出任何回应。

CVSS 9.9 · Critical EPSS 1.70% · P77

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 7

VendorProduct Version RangeStatus
OpenSpug Spug 3.0 affected
3.1 affected
3.2 affected
3.3 affected
3.4.0 affected
4.0.0 affected
4.0.1 affected
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I. Basic Information for CVE-2026-108540

Vulnerability Information
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Vulnerability Title
OpenSpug File Transfer transfer os command injection
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw has been found in OpenSpug Spug up to 3.4.0/4.0.1. This impacts an unknown function of the file /exec/transfer of the component File Transfer. Executing a manipulation can lead to os command injection. The attack may be launched remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
OpenSpug Spug 3.0 cpe:2.3:a:openspug:spug:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-108540

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III. Intelligence Information for CVE-2026-108540

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Proof of Concept for CVE-2026-108540 (1)

IV. Related Vulnerabilities

Same product: Spug
Same vendor: OpenSpug
Same weakness: CWE-78

V. Comments for CVE-2026-108540

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