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CVE-2026-40071— pyLoad WebUI JSON permission mismatch lets ADD/DELETE users invoke MODIFY-only actions

Quick assessment

Affected
pyload pyload
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.

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.dev97之前版本存在安全漏洞，该漏洞源于某些WebUI JSON端点权限较弱，可能导致经过身份验证的低权限用户执行本应被拒绝的MODIFY操作。

CVSS 5.4 · Medium EPSS 0.32% · P23
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I. Basic Information for CVE-2026-40071

Vulnerability Information
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Vulnerability Title
pyLoad WebUI JSON permission mismatch lets ADD/DELETE users invoke MODIFY-only actions
Source: CVE Program / CVE List V5
Vulnerability Description
pyLoad is a free and open-source download manager written in Python. Prior to 0.5.0b3.dev97, the /json/package_order, /json/link_order, and /json/abort_link WebUI JSON endpoints enforce weaker permissions than the core API methods they invoke. This allows authenticated low-privileged users to execute MODIFY operations that should be denied by pyLoad's own permission model. This vulnerability is fixed in 0.5.0b3.dev97.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
Source: CVE Program / CVE List V5
Vulnerability Title
pyLoad 安全漏洞
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.dev97之前版本存在安全漏洞，该漏洞源于某些WebUI JSON端点权限较弱，可能导致经过身份验证的低权限用户执行本应被拒绝的MODIFY操作。
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
pyload pyload < 0.5.0b3.dev97 -

II. Public POCs for CVE-2026-40071

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III. Intelligence Information for CVE-2026-40071

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Vendor Advisories for CVE-2026-40071 (1)

IV. Related Vulnerabilities

Same product: pyload
Same vendor: pyload
Same weakness: CWE-863

V. Comments for CVE-2026-40071

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