TI-2026-25725 Aliases CVE-2026-33314 GHSA-q485-cg9q-xq2r

pyload-ng: Improper Authentication and Origin Validation Error

HIGH 68CWE-287Published 2026-03-24 · Updated 2026-03-26

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Security bypass
Confidentiality · integrity · availability: None · Low · Low
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-287.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.0019 8th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix Fixed pyload (pyload): 0.5.0b3.dev97pyload-ng (PyPI): 0.5.0b3.dev97

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: Yes
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
pyload	pyload	before 0.5.0b3.dev97	0.5.0b3.dev97	Patch available	CNA
—	pyload-ng (PyPI)	before 0.5.0b3.dev97	0.5.0b3.dev97	Patch available	GHSA-q485-cg9q-xq2r

pyload Vendorpyload Affected before 0.5.0b3.dev97 Fixed in 0.5.0b3.dev97 Patch available CNA
pyload-ng (PyPI) Vendor— Affected before 0.5.0b3.dev97 Fixed in 0.5.0b3.dev97 Patch available GHSA-q485-cg9q-xq2r

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:pyload-ng_project:pyload-ng::::::python::*	before 0.5.0b3.dev97	Vulnerable	Pyload-ng Project

cpe:2.3:a:pyload-ng_project:pyload-ng:*:*:*:*:*:python:*:* Versions before 0.5.0b3.dev97 Vulnerable ·Pyload-ng Project

Remediation

Fix · CNA pyload (pyload) Fixed in 0.5.0b3.dev97
Fix · GHSA-q485-cg9q-xq2r pyload-ng (PyPI) Fixed in 0.5.0b3.dev97 Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2026-33314
2026-10-03 Alias added: GHSA-q485-cg9q-xq2r

References

Exploit 1

https://github.com/pyload/pyload/security/advisories/GHSA-q485-cg9q-xq2r

Advisory 1

https://nvd.nist.gov/vuln/detail/CVE-2026-33314

Other 2

TI-2023-00282 Code Injection in pyload/pyload CVSS 3.1CRITICAL 9.8
TI-2025-34556 pyLoad CNL Blueprint is vulnerable to Path Traversal through `dlc_path` leading to Remote Code Execution (RCE) CVSS 3.1CRITICAL 9.8
TI-2025-33765 pyLoad vulnerable to remote code execution through js2py onCaptchaResult CVSS 3.1CRITICAL 9.8
TI-2023-00412 Excessive Attack Surface in pyload/pyload CVSS 3.1CRITICAL 9.8
TI-2026-27589 pyLoad has SSRF fix bypass via HTTP redirect CVSS 4.0CRITICAL 9.3
TI-2026-26332 pyLoad: Server-Side Request Forgery via Download Link Submission Enables Cloud Metadata Exfiltration CVSS 4.0CRITICAL 9.3

See all 49 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences