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CVE-2026-39921

6.3 · MEDIUM

GeoNode versions 4.0 before 4.4.5 and 5.0 before 5.0.2 contain a server-side request forgery vulnerability that allows authenticated users with document upload permissions to trigger arbitrary outb…

Published Apr 10, 2026CWE-918EPSS 0.37%

Overview

CVE-2026-39921 is a medium-severity vulnerability. It was published on April 10, 2026 and has a CVSS 3.1 base score of 6.3 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 6.3, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

GeoNode versions 4.0 before 4.4.5 and 5.0 before 5.0.2 contain a server-side request forgery vulnerability that allows authenticated users with document upload permissions to trigger arbitrary outbound HTTP requests by providing a malicious URL via the doc_url parameter during document upload. Attackers can supply URLs pointing to internal network targets, loopback addresses, RFC1918 addresses, or cloud metadata services to cause the server to make requests to internal resources without SSRF mitigations such as private IP filtering or redirect validation.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/GeoNode/geonode/commit/4a852cfc1da732b10779b5bf5f087c8f02985571GitHubgithub.com/GeoNode/geonode/commit/9856cb5ab27e33c0adba9274f4cccf6d1f534bd1GitHubgithub.com/GeoNode/geonode/pull/14058GitHubgithub.com/GeoNode/geonode/releases/tag/4.4.5GitHubgithub.com/GeoNode/geonode/releases/tag/5.0.2Refwww.vulncheck.com/advisories/geonode-ssrf-via-document-upload

How CyberStrike helps

Frequently asked questions

What is CVE-2026-39921?

CVE-2026-39921 is a medium-severity vulnerability. It was published on April 10, 2026 and has a CVSS 3.1 base score of 6.3 (MEDIUM).

How severe is CVE-2026-39921?

This vulnerability has a CVSS 3.1 base score of 6.3, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-39921?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-39921?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-39921 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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