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CVE-2026-90770— Spug through 3.4.0 Remote Code Execution via ping_check

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.

openspug spug是openspug组织开源的一款轻量级自动化运维管理平台。 openspug spug 3.4.0及之前版本存在命令注入漏洞，该漏洞源于ping_check函数未验证用户提供的监控地址并将其直接插入shell命令，具有监控权限的已认证用户可通过/monitor/run_test/端点注入shell元字符，可能导致以Spug进程用户身份执行任意代码。

CVSS 8.8 · High EPSS 1.32% · P70

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 1

VendorProduct Version RangeStatus
openspug spug ≤ 3.4.0 affected
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I. Basic Information for CVE-2026-90770

Vulnerability Information
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Vulnerability Title
Spug through 3.4.0 Remote Code Execution via ping_check
Source: CVE Program / CVE List V5
Vulnerability Description
Spug through 3.4.0 contains a remote code execution vulnerability in the ping_check function that interpolates user-supplied monitor addresses directly into shell commands without validation. Authenticated users with monitor permissions can inject shell metacharacters via the /monitor/run_test/ endpoint to execute arbitrary commands as the Spug process user.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/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
Vulnerability Title
openspug spug 命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
openspug spug是openspug组织开源的一款轻量级自动化运维管理平台。 openspug spug 3.4.0及之前版本存在命令注入漏洞，该漏洞源于ping_check函数未验证用户提供的监控地址并将其直接插入shell命令，具有监控权限的已认证用户可通过/monitor/run_test/端点注入shell元字符，可能导致以Spug进程用户身份执行任意代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
openspug spug 0 ~ 3.4.0 -

II. Public POCs for CVE-2026-90770

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III. Intelligence Information for CVE-2026-90770

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Patches & Fixes for CVE-2026-90770 (1)

Vendor Advisories for CVE-2026-90770 (1)

Proof of Concept for CVE-2026-90770 (2)

Other References for CVE-2026-90770 (1)

IV. Related Vulnerabilities

Same product: spug
Same vendor: openspug
Same weakness: CWE-78

V. Comments for CVE-2026-90770

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