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Advisory record · GHSA-h7xc-4mv8-59fj

mcp-url-downloader has a Server-Side Request Forgery issue

CVSS 6.9 MediumEPSS 0.0029 · 22nd percentile

Published by the GitHub Advisory Database at 27 Apr 2026, 21:31 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
mcp-url-downloaderPyPI<=0.1.0No fixed version yet
Identifiers
GHSA-h7xc-4mv8-59fj · CVE-2026-7158 · PYSEC-2026-2631
Weakness (CWE)
CWE-918
Tags
Published
27 Apr 2026
Updated
13 Jul 2026

Machine-written summary

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

mcp-url-downloader, up to and including version 0.1.0, contains a server-side request forgery flaw in its URL validation function. A remote attacker can manipulate the url argument to make the server issue requests to destinations of their choosing. No fixed version is listed, and the project is a rolling release without version information, so the source gives no fix or workaround.

Written 6 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
6.9 Medium 4.0 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P CNA (VulDB)
  • CISA KEV Not listed.
  • EPSS 0.0029, the 22nd percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 15:00 UTC First seen by agentprime
  2. 31 Oct 2026, 15:00 UTC Confirmed by OSV

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.