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CVE-2026-38822

Quick assessment

Affected
openNDS openNDS
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 openNDS 11.0.0 之前的版本中， 脚本（由 openNDS 守护进程调用，用于生成经过身份验证的客户端状态页面）存在操作系统命令注入漏洞。攻击向量是通过构造的 HTTP GET 查询参数键名实现注入。经过身份验证的强制门户（captive portal）用户可以通过在 URL 查询参数名称中嵌入分号（ ）来注入任意 shell 命令。

CVSS 7.6 · High EPSS 0.85% · P55

Affected Version Matrix 1

VendorProduct Version RangeStatus
openNDS openNDS < 11.0.0 affected
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I. Basic Information for CVE-2026-38822

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
In openNDS before 11.0.0, the client_params.sh script, invoked by the openNDS daemon to serve the authenticated client status page, is vulnerable to OS command injection through crafted HTTP GET query parameter keys. An authenticated captive portal user can inject arbitrary shell commands by embedding semicolons in a URL query parameter name.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L
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
openNDS openNDS 0 ~ 11.0.0 -

II. Public POCs for CVE-2026-38822

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III. Intelligence Information for CVE-2026-38822

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Patches & Fixes for CVE-2026-38822 (1)

Same Patch Batch · openNDS · 2026-08-28 · 4 CVEs total

CVE-2026-38820 8.3 HIGH openNDS 11.0.0前存在Shell命令注入
CVE-2026-38821 7.1 HIGH openNDS 11.0.0 前堆缓冲区溢出漏洞
CVE-2026-38819 5.3 MEDIUM openNDS 11.0.0之前存在内存泄漏漏洞

IV. Related Vulnerabilities

Same product: openNDS
Same vendor: openNDS
Same weakness: CWE-78

V. Comments for CVE-2026-38822

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