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CVE-2026-44226— pyLoad: Unauthenticated traceback disclosure via global exception handler in WebUI

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.dev100之前版本存在安全漏洞，该漏洞源于WebUI在未处理异常时返回完整Python跟踪详情，可能导致未经身份验证的用户触发服务器异常并获取内部堆栈跟踪。

CVSS 5.3 · Medium EPSS 0.41% · P33

Affected Version Matrix 1

VendorProduct Version RangeStatus
pyload pyload < 0.5.0b3.dev100 affected
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I. Basic Information for CVE-2026-44226

Vulnerability Information
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Vulnerability Title
pyLoad: Unauthenticated traceback disclosure via global exception handler in WebUI
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.dev100, pyload-ng WebUI returns full Python traceback details to clients on unhandled exceptions. Because /web/<path:filename> is reachable without authentication and renders attacker-controlled template names, an unauthenticated user can reliably trigger a server exception (for example by requesting a non-existent template) and receive internal stack traces in the HTTP response. This vulnerability is fixed in 0.5.0b3.dev100.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过错误消息导致的信息暴露
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.dev100之前版本存在安全漏洞，该漏洞源于WebUI在未处理异常时返回完整Python跟踪详情，可能导致未经身份验证的用户触发服务器异常并获取内部堆栈跟踪。
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.dev100 -

II. Public POCs for CVE-2026-44226

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III. Intelligence Information for CVE-2026-44226

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Vendor Advisories for CVE-2026-44226 (1)

Same Patch Batch · pyload · 2026-05-11 · 5 CVEs total

CVE-2026-42313 8.3 HIGH pyload-ng: non-admin SETTINGS users can redirect all outbound traffic through an attacker-
CVE-2026-42315 8.1 HIGH pyLoad: Path Traversal via Package Folder Name in set_package_data
CVE-2026-42312 6.8 MEDIUM pyload-ng: non-admin SETTINGS users can disable outbound TLS peer verification
CVE-2026-42314 6.5 MEDIUM pyLoad: Path Traversal via Package Folder Name

IV. Related Vulnerabilities

Same product: pyload
Same vendor: pyload
Same weakness: CWE-209

V. Comments for CVE-2026-44226

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