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Advisory record · GHSA-7gvf-3w72-p2pg

pyLoad: SSRF filter bypass via HTTP redirect in BaseDownloader (Incomplete fix for CVE-2026-33992)

CVSS 9.3 CriticalCriticalEPSS 0.0028 · 21st percentile

Critical, because:

  • CVSS score 9.3: 9.0 or more.

How we decide what’s critical

Published by the GitHub Advisory Database at 29 Jun 2026, 11:50 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
pyload-ngPyPI<=0.5.0b3.dev96No fixed version yet
Identifiers
GHSA-7gvf-3w72-p2pg · CVE-2026-35459 · PYSEC-2026-495
Weakness (CWE)
CWE-918
Tags
Published
29 Jun 2026
Updated
1 Jul 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

The pyload-ng package, versions up to and including 0.5.0b3.dev96, has an incomplete SSRF fix. The IP check only validates the initial download URL, and pycurl follows HTTP redirects without checking their targets, so an authenticated user with ADD permission can make the server fetch internal or cloud metadata addresses. No fixed version is listed; the source suggests disabling automatic redirect following or validating each redirect hop.

Written 10 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
9.3 Critical 4.0 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 CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0028, the 21st percentile, on 13 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the GitHub Advisory Database, published 29 Jun 2026. New records show when each source confirmed them.

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.