Vulnerability · Published Mar 27, 2026 · Assigned by GitHub_M

CVE-2026-33992pyLoad: Server-Side Request Forgery via Download Link Submission Enables Cloud Metadata Exfiltration

Critical 9.3

In plain English

A critical-severity server-side request forgery in pyload from pyload. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 35% of all known vulnerabilities).

Severity (CVSS 4.0)9.3Critical
Exploit odds (30 days)0.4%top 65.1% 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, PyLoad's download engine accepts arbitrary URLs without validation, enabling Server-Side Request Forgery (SSRF) attacks. An authenticated attacker can exploit this to access internal network services and exfiltrate cloud provider metadata. On DigitalOcean droplets, this exposes sensitive infrastructure data including droplet ID, network configuration, region, authentication keys, and SSH keys configured in user-data/cloud-init. Version 0.5.0b3.dev97 contains a patch.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
PyPIpyload-ngno fix listedGHSA-m74m-f7cr-432x
PyPIpyload-ngno fix listedPYSEC-2026-497

Affected products (as reported)

VendorProductVersions
pyload pyload < 0.5.0b3.dev97

Weakness: CWE-918 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N

References