# CVE-2021-40822: GeoServer allows SSRF via the option for setting a proxy host

Source: https://junglewise.ai/threats/cve-2021-40822-geoserver-allows-ssrf-via-the-option-for-setting-a-proxy-host  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2022-05-03  
License: CC BY 4.0 with a link back

CVE-2021-40822 · Severity: low · CVSS 3.1 · Published 2022-05-03

GeoServer allows SSRF via the option for setting a proxy host

Technologies: [org.geoserver:gs-main (Maven)](https://junglewise.ai/threats/technologies/org-geoserver-gs-main). Vendors: [Maven](https://junglewise.ai/threats/vendors/maven).

## Quick answers

**Is CVE-2021-40822 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2021-40822 being exploited in the wild.

**How severe is CVE-2021-40822?** Low severity, with a CVSS score of 3.1, published 3 May 2022.

**Which products and versions are affected?** org.geoserver:gs-main (Maven) ECOSYSTEM:introduced=0,last_affected=2.18.5.

**Is there a fix for CVE-2021-40822?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**Am I affected by CVE-2021-40822?** Check whether you run org.geoserver:gs-main (Maven) 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.

## Affected products

- org.geoserver:gs-main (Maven) ECOSYSTEM:introduced=0,last_affected=2.18.5

## Identifiers

- CVE-2021-40822
- GHSA-rr33-j5p5-ppf8

## Related threats

- [GeoServer Server-Side Template Injection in FreeMarker templates](https://junglewise.ai/threats/cve-2024-45747-geoserver-server-side-template-injection-in-freemarker-templates)
- [GeoServer SSRF in XML entity resolution via proxy base URL bypass](https://junglewise.ai/threats/cve-2025-58175-geoserver-ssrf-in-xml-entity-resolution-via-proxy-base-url-bypass)
- [GeoServer's Server Status shows sensitive environmental variables and Java properties](https://junglewise.ai/threats/cve-2024-34696-geoserver-s-server-status-shows-sensitive-environmental-variables)
- [GeoServer's Style Publisher vulnerable to Stored Cross-Site Scripting (XSS)](https://junglewise.ai/threats/cve-2024-23640-geoserver-s-style-publisher-vulnerable-to-stored-cross-site)
- [GeoServer path traversal in log file configuration](https://junglewise.ai/threats/cve-2023-41877-geoserver-path-traversal-in-log-file-configuration)