GeoServer allows SSRF via the option for setting a proxy host

HIGH 7.5CVE-2021-40822 · GHSA-rr33-j5p5-ppf8 · Published 02/05/2022 · updated 17/06/2026

In short

CVE-2021-40822 is a HIGH (CVSS 7.5) vulnerability affecting org.geoserver:gs-main, geoserver (osgeo).
Chance of exploitation in the next 30 days (EPSS): 19.3%, higher than 97.3% of all vulnerabilities.
Fix: update to 2.19.3 or later.

Package	Affected versions	Patched versions
org.geoserver:gs-main Maven	`≥ 2.19.0, ≤ 2.19.2≤ 2.18.5`	No fix yet
geoserver osgeo	`≥ 2.19.0, < 2.19.3≤ 2.18.5`	`2.19.3`

GeoServer through 2.18.5 and 2.19.x through 2.19.2 allows SSRF via the option for setting a proxy host.

NVD description

GeoServer through 2.18.5 and 2.19.x through 2.19.2 allows SSRF via the option for setting a proxy host.

Running one of these products? Scan your site to see whether it exposes a vulnerable version.

Package

Affected versions

Patched versions

Maven

≥ 2.19.0, ≤ 2.19.2≤ 2.18.5

No fix yet

≥ 2.19.0, < 2.19.3≤ 2.18.5

2.19.3

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