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.
Spug 3.4.0 及之前版本中存在一个远程代码执行漏洞，位于 函数中。该函数将用户提供的监控地址未经校验直接插入到 shell 命令中。拥有监控权限的已认证用户可以通过 端点注入 shell 元字符，从而以 Spug 进程用户身份执行任意命令。
Possible ATT&CK Techniques 1 AI
T1059 · Command and Scripting Interpreter
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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
Affected Products
II. Public POCs for CVE-2026-90770
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Patches & Fixes for CVE-2026-90770 (1)
Vendor Advisories for CVE-2026-90770 (1)
-
🔗 Spug through 3.4.0 Remote Code Execution via ping_check | Advisories | VulnCheck third-party-advisory
Proof of Concept for CVE-2026-90770 (2)
Other References for CVE-2026-90770 (1)
IV. Related Vulnerabilities
Same weakness: CWE-78
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V. Comments for CVE-2026-90770
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