Server-Side Request Forgery (SSRF) in geoserver - CVE-2021-40822

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Main Vulnerability Database Vulnerabilities #VU129769

Server-Side Request Forgery (SSRF) in geoserver - CVE-2021-40822

Published: May 5, 2026


Vulnerability identifier: #VU129769
CSH Severity: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-40822
CWE-ID: CWE-918
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
geoserver
Software vendor:
geoserver

Description

The vulnerability allows a remote attacker to disclose sensitive information.

The vulnerability exists due to server-side request forgery (SSRF) in the TestWfsPost endpoint when handling user-supplied requests to specific targets. A remote attacker can send a specially crafted request to disclose sensitive information.

The issue is limited to specific targets, such as PHP + Nginx environments.


Remediation

Install security update from vendor's website.

External links