CVE-2026-7158: Mcp url downloader Mcp-url-downloader Has A Server-Side Request Vulnerability

MODERATE
Advisory Identifier: GHSA-h7xc-4mv8-59fj
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CVSS 7.3
CWE-918
Published
Advisory Summary

CVE-2026-7158 is a MODERATE (CVSS 7.3) mcp-url-downloader has a server-side request vulnerability (CWE-918: Server-Side Request Forgery (SSRF)) affecting Mcp url downloader libraries in the PyPI ecosystem. The issue involves mcp-url-downloader has a server-side request forgery issue. Remediation is available in the latest vendor maintenance releases.

CVE-2026-7158 at a Glance

CVE Identifier CVE-2026-7158
GHSA Identifier GHSA-h7xc-4mv8-59fj
Severity MODERATE
CVSS v3.1 Base Score 7.3
CWE Classification CWE-918: Server-Side Request Forgery (SSRF)
Affected Product Mcp url downloader
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 7.3

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality Low (C:L)
Integrity Low (I:L)
Availability Low (A:L)

How to Fix CVE-2026-7158

To remediate this vulnerability, upgrade all affected Mcp url downloader dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

mcp-url-downloader fixed: Latest secure release 
pip install mcp-url-downloader>=Latest secure release
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

pip show mcp-url-downloader

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2026-7158, inspect your installed packages using pip:

pip show mcp-url-downloader

Analyze the terminal output to locate any version of Mcp url downloader in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The pip show mcp-url-downloader command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-918: Server-Side Request Forgery (SSRF), where the web server receives a url or similar request from an upstream component and retrieves the contents of this url, but it does not sufficiently ensure that the request is being sent to the expected destination. In Mcp url downloader, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

A vulnerability has been found in dmitryglhf mcp-url-downloader up to 4b8cf2de55f6e8864a77d108e8a94a5b8e4394c6. Affected by this issue is the function _validate_url_safe of the file src/mcp_url_downloader/server.py. Such manipulation of the argument url leads to server-side request forgery. The attack can be executed remotely. The exploit has been disclosed to the public and may be used. This product implements a rolling release for ongoing delivery, which means version information for affected or updated releases is unavailable. The project was informed of the problem early through an issue report but has not responded yet.

CVE-2026-7158 Affected Mcp url downloader Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
mcp-url-downloader
pypi/mcp-url-downloader
PyPI
≤ 0.1.0

References

NVD — CVE-2026-7158 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-7158
Mcp url downloader Source Repository REPOSITORY
https://github.com/dmitryglhf/url-download-mcp/issues/2
Mcp url downloader Source Repository REPOSITORY
https://github.com/dmitryglhf/url-download-mcp
vuldb.com/submit/802062 WEB
https://vuldb.com/submit/802062
vuldb.com/vuln/359757 WEB
https://vuldb.com/vuln/359757
vuldb.com/vuln/359757/cti WEB
https://vuldb.com/vuln/359757/cti

Frequently Asked Questions

What is CVE-2026-7158?
CVE-2026-7158 is a security vulnerability in Mcp url downloader involving mcp-url-downloader has a Server-Side Request Forgery issue under CWE-918: Server-Side Request Forgery (SSRF).
Which Mcp url downloader versions are affected?
Affected versions include releases prior to current release patches across affected packages: mcp-url-downloader.
What version fixes CVE-2026-7158?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is mcp-url-downloader affected?
Yes, mcp-url-downloader is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of CVE-2026-7158?
CVE-2026-7158 has a CVSS v3.1 base score of 7.3 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.
What CWE is associated with CVE-2026-7158?
CVE-2026-7158 is classified under CWE-918: Server-Side Request Forgery (SSRF) (The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.).
How can I check PyPI dependencies for CVE-2026-7158?
Run the dependency tree command: 'pip show mcp-url-downloader'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
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  "id" : "GHSA-h7xc-4mv8-59fj",
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  "published" : "2026-04-27T21:31:03Z",
  "aliases" : [ "CVE-2026-7158" ],
  "summary" : "mcp-url-downloader has a Server-Side Request Forgery issue",
  "details" : "A vulnerability has been found in dmitryglhf mcp-url-downloader up to 4b8cf2de55f6e8864a77d108e8a94a5b8e4394c6. Affected by this issue is the function _validate_url_safe of the file src/mcp_url_downloader/server.py. Such manipulation of the argument url leads to server-side request forgery. The attack can be executed remotely. The exploit has been disclosed to the public and may be used. This product implements a rolling release for ongoing delivery, which means version information for affected or updated releases is unavailable. The project was informed of the problem early through an issue report but has not responded yet.",
  "severity" : [ {
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  "references" : [ {
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}