CVE-2026-33314: pyload-ng: Improper Authentication and Origin Validation Error

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2026-03-24 · updated 2026-06-17
Weakness: CWE-287

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.

Affected products

pyload: before 0.5.0b3.dev97 — fixed in 0.5.0b3.dev97

How to fix

Upgrade to a fixed version: pyload 0.5.0b3.dev97. Check the vendor advisory for mitigations.

References

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

Get alerted when CVE-2026-33314 or the next vulnerability affects your stack