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Vulnerability · Published Mar 24, 2026 · Assigned by GitHub_M

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

Medium 6.5

In plain English

A medium-severity improper authentication in pyload from pyload. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 9% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)0.2%top 91.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official 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 packages & fixed versions

EcosystemPackageFixed inAdvisory
PyPIpyload-ng0.5.0b3.dev97GHSA-q485-cg9q-xq2r
PyPIpyload-ng0.5.0b3.dev97PYSEC-2026-122

Affected products (as reported)

VendorProductVersions
pyload pyload < 0.5.0b3.dev97

Weakness: CWE-287, CWE-346 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

References