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CVE-2026-35463— pyLoad has Improper Neutralization of Special Elements used in an OS Command

CVSS 8.8 · High EPSS 0.14% · P33
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I. Basic Information for CVE-2026-35463

Vulnerability Information
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Vulnerability Title
pyLoad has Improper Neutralization of Special Elements used in an OS Command
Source: NVD (National Vulnerability Database)
Vulnerability Description
pyLoad is a free and open-source download manager written in Python. In 0.5.0b3.dev96 and earlier, the ADMIN_ONLY_OPTIONS protection mechanism restricts security-critical configuration values (reconnect scripts, SSL certs, proxy credentials) to admin-only access. However, this protection is only applied to core config options, not to plugin config options. The AntiVirus plugin stores an executable path (avfile) in its config, which is passed directly to subprocess.Popen(). A non-admin user with SETTINGS permission can change this path to achieve remote code execution.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
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: NVD (National Vulnerability Database)
Vulnerability Title
pyLoad 操作系统命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
pyLoad是pyLoad开源的一个用 Python 编写的免费开源下载管理器。 pyLoad 0.5.0b3.dev96及之前版本存在操作系统命令注入漏洞，该漏洞源于ADMIN_ONLY_OPTIONS保护机制仅应用于核心配置选项，而未应用于插件配置选项，可能导致具有SETTINGS权限的非管理员用户更改AntiVirus插件中可执行文件路径，从而实现远程代码执行。
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

VendorProductAffected VersionsCPESubscribe
pyloadpyload <= 0.5.0b3.dev96 -

II. Public POCs for CVE-2026-35463

#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium
Qwen3.6-35B-A3B · 6601 chars
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III. Intelligence Information for CVE-2026-35463

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Same Patch Batch · pyload · 2026-04-07 · 4 CVEs total

CVE-2026-354647.5 HIGHpyLoad has an incomplete fix for CVE-2026-33509: unprotected storage_folder enables arbitr
CVE-2026-355866.8 MEDIUMAuthorization Bypass for SSL Certificate/Key Configuration Due to Option Name Mismatch in
CVE-2026-355925.3 MEDIUMpyLoad has an Incomplete Tar Path Traversal Fix in UnTar._safe_extractall via os.path.comm

IV. Related Vulnerabilities

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

V. Comments for CVE-2026-35463

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