---
title: "CVE-2024-34711: GeoServer has improper ENTITY_RESOLUTION_ALLOWLIST URI validation in XML Processing (SSRF)"
url: https://erroneo.us/security/cve/CVE-2024-34711/
description: "CVE-2024-34711 (org.geoserver.web:gs-web-app (Maven)): GeoServer is an open source server that allows users to share and edit geospatial data. An improper…"
type: vulnerability-record
section: "Security Digest"
date_published: 2025-06-10
date_modified: 2025-06-10
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2024-34711"
kev: false
cvss: 9.3
epss: 0.00298
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2024-34711: GeoServer has improper ENTITY_RESOLUTION_ALLOWLIST URI validation in XML Processing (SSRF)

**Signal:** Critical and remotely reachable. No known exploitation yet, but it is network-reachable without credentials. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- No confirmed exploitation. It is not in CISA’s KEV catalog and CISA’s SSVC assessment records no known exploitation. That can change quickly after a public write-up; re-check if you are affected.
- EPSS 0.3% , percentile 21: FIRST’s model estimates a 0.3% chance of exploitation activity in the next 30 days, higher than 21% of all scored CVEs (low). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
- Only applies if your dependency tree includes org.geoserver.web:gs-web-app (Maven) < 2.25.0, fixed in 2.25.0 ; org.geoserver.main:gs-main (Maven) < 2.25.0, fixed in 2.25.0 . Check your lockfile, including transitive dependencies.

## What it is

GeoServer is an open source server that allows users to share and edit geospatial data. An improper URI validation vulnerability exists that enables an unauthorized attacker to perform XML External Entities (XEE) attack, then send GET request to any HTTP server. By default, GeoServer use PreventLocalEntityResolver class from GeoTools to filter out malicious URIs in XML entities before resolving them. The URI must match the regex (?i)(jar:file|http|vfs)[^?#;]\\.xsd. But the regex leaves a chance for attackers to request to any HTTP server or limited file. Attacker can abuse this to scan internal networks and gain information about them then exploit further. GeoServer 2.25.0 and greater default to the use of ENTITYRESOLUTIONALLOWLIST and does not require you to provide a system property.

## Affected packages

- Maven `org.geoserver.web:gs-web-app` < 2.25.0 → fixed: 2.25.0
- Maven `org.geoserver.main:gs-main` < 2.25.0 → fixed: 2.25.0

## Affected products (CVE record)

- geoserver geoserver: < 2.25.0

## Severity

- GitHub_M CVSS 3.1: 9.3 `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N`
- GitHub CVSS 3.1: 9.3 `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N`

## Exploitation

- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation none , automatable yes , technical impact partial .
- FIRST EPSS (model of 2026-10-21): 0.30% probability of exploitation activity in the next 30 days; percentile 21.

## Sources

- [GitHub Advisory GHSA-mc43-4fqr-c965](https://github.com/advisories/GHSA-mc43-4fqr-c965)
- [CVE.org record CVE-2024-34711](https://www.cve.org/CVERecord?id=CVE-2024-34711)
- [NVD entry CVE-2024-34711](https://nvd.nist.gov/vuln/detail/CVE-2024-34711)
- [github.com](https://github.com/geoserver/geoserver/security/advisories/GHSA-mc43-4fqr-c965)
- [docs.geoserver.org](https://docs.geoserver.org/latest/en/user/production/config.html#production-config-external-entities)

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Source page: https://erroneo.us/security/cve/CVE-2024-34711/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt