CVE-2026-33314— pyload-ng: Improper Authentication and Origin Validation Error
Possible ATT&CK Techniques 1AI
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I. Basic Information for CVE-2026-33314
Vulnerability Information
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Vulnerability Title
pyload-ng: Improper Authentication and Origin Validation Error
Source: NVD (National Vulnerability Database)
Vulnerability Description
pyLoad is a free and open-source download manager written in Python. Prior to version 0.5.0b3.dev97, a Host Header Spoofing vulnerability in the @local_check decorator allows unauthenticated external attackers to bypass local-only restrictions. This grants access to the Click'N'Load API endpoints, enabling attackers to remotely queue arbitrary downloads, leading to Server-Side Request Forgery (SSRF) and Denial of Service (DoS). This issue has been patched in version 0.5.0b3.dev97.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
认证机制不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
pyLoad 访问控制错误漏洞
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之前版本存在访问控制错误漏洞，该漏洞源于@local_check装饰器存在主机标头欺骗，可能导致未经身份验证的外部攻击者绕过本地限制并触发服务器端请求伪造和拒绝服务。
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
II. Public POCs for CVE-2026-33314
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Vendor Advisories for CVE-2026-33314 (1)
Same Patch Batch · pyload · 2026-03-24 · 3 CVEs total
| CVE-2026-33509 | 7.5 HIGH | pyload-ng: SETTINGS Permission Users Can Achieve Remote Code Execution via Unrestricted Re |
| CVE-2026-33511 | pyload-ng: Authentication Bypass via Host Header Injection in ClickNLoad |
IV. Related Vulnerabilities
Same product: pyload
- CVE-2026-45306
pyLoad: Incomplete Fix for CVE-2026-33509 -storage_folder By - CVE-2026-45348
pyLoad: Stored XSS in Downloads view via unsanitized link UR - CVE-2026-46561
pyLoad: SSRF via HTTP Redirect Bypass in parse_urls API - CVE-2026-44226
pyLoad: Unauthenticated traceback disclosure via global exce - CVE-2026-42315
pyLoad: Path Traversal via Package Folder Name in set_packag
Same vendor: pyload
- CVE-2026-45306
pyLoad: Incomplete Fix for CVE-2026-33509 -storage_folder By - CVE-2026-45348
pyLoad: Stored XSS in Downloads view via unsanitized link UR - CVE-2026-46561
pyLoad: SSRF via HTTP Redirect Bypass in parse_urls API - CVE-2026-44226
pyLoad: Unauthenticated traceback disclosure via global exce - CVE-2026-42315
pyLoad: Path Traversal via Package Folder Name in set_packag
Same weakness: CWE-287
- CVE-2026-48526
PyJWT: Public-key JWK accepted as HMAC secret enables forged - CVE-2026-8979
Authentication Bypass - CVE-2026-44720
OpenLearnX: Critical Authentication Bypass via JWT Signature - CVE-2026-47272
pam_usb: OTP pad authentication bypass via missing system pa - CVE-2026-7876
Authentication bypass vulnerability found in Aspera High-Spe
V. Comments for CVE-2026-33314
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