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CVE-2026-46561— pyLoad: SSRF via HTTP Redirect Bypass in parse_urls API

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，该漏洞源于基于PREREQFUNCTION的私有IP检查未应用于HTTPRequest，攻击者可通过302重定向绕过is_global_host检查。

CVSS 5.0 · Medium EPSS 0.29% · P20

Affected Version Matrix 1

VendorProduct Version RangeStatus
pyload pyload < 0.5.0b3.dev100 affected
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I. Basic Information for CVE-2026-46561

Vulnerability Information
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Vulnerability Title
pyLoad: SSRF via HTTP Redirect Bypass in parse_urls API
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, the PREREQFUNCTION-based private IP check was not applied to HTTPRequest (used by the parse_urls API). An authenticated attacker can supply a URL pointing to an attacker-controlled server that responds with a 302 redirect to an internal/private IP address, bypassing the is_global_host() check on the initial URL. 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:L/UI:N/S:C/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
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，该漏洞源于基于PREREQFUNCTION的私有IP检查未应用于HTTPRequest，攻击者可通过302重定向绕过is_global_host检查。
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-2026-46561

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III. Intelligence Information for CVE-2026-46561

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Vendor Advisories for CVE-2026-46561 (1)

Same Patch Batch · pyload · 2026-05-28 · 3 CVEs total

CVE-2026-45348 8.7 HIGH pyLoad: Stored XSS in Downloads view via unsanitized link URL in packages.js template lite
CVE-2026-45306 6.5 MEDIUM pyLoad: Incomplete Fix for CVE-2026-33509 -storage_folder Bypass via Session Directory

IV. Related Vulnerabilities

Same product: pyload
Same vendor: pyload
Same weakness: CWE-918

V. Comments for CVE-2026-46561

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