High · published November 26, 2025
CVSS calls it high at 8.2. It is confirmed in active exploitation. It sits in the 99.1th percentile for exploit probability.
🚨 An XML External Entity (XXE) vulnerability lurking in GeoServer could let attackers pull sensitive data straight from your server! ⚠️ Think of your GeoServer as a restaurant that takes orders via XML menus. If it doesn't properly check the ingredients listed, a crafty hacker could sneak in a recipe that accesses all the behind-the-scenes secrets, just like a diner serving up your whole kitchen's inventory! If exploited, this vulnerability could allow attackers to read sensitive files on the server, potentially leaking critical geospatial data and undermining the integrity of your operations. It's a serious breach that could leave your data exposed and your reputation in tatters!
Think of your GeoServer as a restaurant that takes orders via XML menus. If it doesn't properly check the ingredients listed, a crafty hacker could sneak in a recipe that accesses all the behind-the-scenes secrets, just like a diner serving up your whole kitchen's inventory! This XXE vulnerability allows attackers to define external entities in XML requests sent to the /geoserver/wms operation GetMap endpoint, leading to unauthorized data access. This issue affects GeoServer versions 2.26.0 to 2.26.2 and 2.25.6 and below.
If exploited, this vulnerability could allow attackers to read sensitive files on the server, potentially leaking critical geospatial data and undermining the integrity of your operations. It's a serious breach that could leave your data exposed and your reputation in tatters! Update GeoServer to version 2.25.6, 2.26.3, or 2.27.0 to fix the vulnerability immediately. Ensure that all XML input is properly sanitized and consider implementing additional security measures like input validation. Don't wait—secure your geospatial data now! You've got this! Follow these steps to lock down your GeoServer and keep your data safe. 🛡️
| Product | Versions | Fixed in |
|---|---|---|
| geoserver/geoserver | < 2.25.6 | 2.25.6 |
| geoserver/geoserver | ≥ 2.26.0, < 2.26.2 | 2.26.2 |