Quick answers
- Is CVE-2026-39921 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-39921 being exploited in the wild.
- How severe is CVE-2026-39921?
- Medium severity, with a CVSS score of 6.3, published 10 April 2026.
- Which products and versions are affected?
- geonode (PyPI) ECOSYSTEM:introduced=4.0.0,fixed=4.4.5,introduced=5.0.0,fixed=5.0.2.
- Is there a fix for CVE-2026-39921?
- Yes. geonode (PyPI): upgrade to 5.0.2 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-39921 attacked?
- It is attacked over the network, in a web application.
- Am I affected by CVE-2026-39921?
- Check whether you run geonode (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
How to fix
- geonode (PyPI): upgrade to 5.0.2 or later
pip install "geonode>=5.0.2"
Technical details
A Server-Side Request Forgery (SSRF) vulnerability exists in GeoNode's document upload functionality. The flaw is located in the handling of the 'doc_url' parameter, which lacks sufficient validation for private IP ranges, loopback addresses, or redirect targets. An authenticated attacker with document upload privileges can provide a malicious URL that forces the server to perform GET requests against internal RFC1918 addresses or cloud provider metadata endpoints (e.g., 169.254.169.254). The fix involves disabling automatic thumbnail generation for remote documents and improving URL validation. Patches are available in versions 4.4.5 and 5.0.2.
Affected products
- GeoNode GeoNode 4.0.0 to 4.4.4, 5.0.0 to 5.0.1
Identifiers
- CVE-2026-39921
- PYSEC-2026-2159
Timeline
- 2026-03-18: patched: Fix merged into master branch
- 2026-03-27: advisory: Release 4.4.5 published
- 2026-03-31: advisory: Release 5.0.2 published
- 2026-04-10: disclosed: CVE published and VulnCheck advisory released
References
- https://github.com/GeoNode/geonode/commit/4a852cfc1da732b10779b5bf5f087c8f02985571
- https://github.com/GeoNode/geonode/commit/9856cb5ab27e33c0adba9274f4cccf6d1f534bd1
- https://github.com/GeoNode/geonode/pull/14058
- https://github.com/GeoNode/geonode/releases/tag/4.4.5
- https://github.com/GeoNode/geonode/releases/tag/5.0.2
- https://www.vulncheck.com/advisories/geonode-ssrf-via-document-upload