CVE-2025-27511: GeoServer is an open source server that allows users to share and edit geospatial data

Q: How do I fix CVE-2025-27511?

geoserver: upgrade to 2.27.0. Exact commands for each OS are on this page.

Q: Is CVE-2025-27511 being exploited?

CVE-2025-27511 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2025-27511 affect?

CVE-2025-27511 affects geoserver. Severity is high (CVSS 7.2). GeoServer is an open source server that allows users to share and edit geospatial data. Prior to version 2.27.0 of the GeoServer DB2 DataStore Extension, an administrator can perform a JNDI attack through specially crafted DB2 jdbc url lead

This month

HIGH 7.2UPGRADE

CVE-2025-27511 is a high-severity flaw (CVSS 7.2) affecting geoserver. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

GeoServer is an open source server that allows users to share and edit geospatial data. Prior to version 2.27.0 of the GeoServer DB2 DataStore Extension, an administrator can perform a JNDI attack through specially crafted DB2 jdbc url leading to to Remote Code Execution (RCE). Version 2.27.0 fixes the issue.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.2 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	None
EPSS exploit chance	1.1% (top 35%)
CISA exploited list	No
Weakness	CWE-74, CWE-502
Published	2026-06-18
Last modified	2026-10-06

Publisher (CNA): GitHub, Inc. · Vendor: osgeo

Last updated 2026-10-06 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-06-18 16:16 UTCPublished CVE record published
2026-10-06 22:10 UTCUpdated Record last modified

osgeo geoserver UPGRADE

Affected: < 2.27.0

Fixed in: 2.27.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy geoserver || rpm -q geoserver || geoserver --version

2. UPGRADE to 2.27.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade geoserver

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade geoserver

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-27511?

geoserver: upgrade to 2.27.0. Exact commands for each OS are on this page.

Is CVE-2025-27511 being exploited?

CVE-2025-27511 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-27511 affect?

CVE-2025-27511 affects geoserver. Severity is high (CVSS 7.2). GeoServer is an open source server that allows users to share and edit geospatial data. Prior to version 2.27.0 of the GeoServer DB2 DataStore Extension, an administrator can perform a JNDI attack through specially crafted DB2 jdbc url lead

How urgent is CVE-2025-27511?

Priority 41/100. High severity

Related CVEs

CVE-2025-52465 HIGH 7.2 UPGRADE GeoServer is an open source server that allows users to share and edit geospatial data
CVE-2025-58175 MEDIUM 6.5 UPGRADE GeoServer is an open source server that allows users to share and edit geospatial data

References

← Back to latest CVEs