GHSA-G628-R368-6VH7
Vulnerability from github – Published: 2026-06-11 20:34 – Updated: 2026-07-15 21:49Summary
Administrator can perform JNDI attack through specially crafted DB2 jdbc url leading to Remote Code Execution (RCE).
Impact
If GeoServer has DB2 extension installed, this vulnerability can lead to executing arbitrary code.
Details
Authenticated users can access Vector Data Sources page to creating a new data store through db2 jdbc connection, performing JNDI attack due to unrestricted connection parameters, and then achieve RCE with deserialization of untrusted data.
Remediation
This issue has been fixed in this release: https://github.com/geoserver/geoserver/releases/tag/2.27.0.
References
- https://osgeo-org.atlassian.net/browse/GEOT-7725
- https://nvd.nist.gov/vuln/detail/cve-2023-27867
{
"affected": [
{
"package": {
"ecosystem": "Maven",
"name": "org.geoserver.extension:gs-db2"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.27.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2025-27511"
],
"database_specific": {
"cwe_ids": [
"CWE-502",
"CWE-74"
],
"github_reviewed": true,
"github_reviewed_at": "2026-06-11T20:34:00Z",
"nvd_published_at": "2026-06-18T16:16:50Z",
"severity": "HIGH"
},
"details": "## Summary\n\nAdministrator can perform JNDI attack through specially crafted DB2 jdbc url leading to Remote Code Execution (RCE).\n\n## Impact\n\nIf GeoServer has DB2 extension installed, this vulnerability can lead to executing arbitrary code.\n\n## Details\n\nAuthenticated users can access Vector Data Sources page to creating a new data store through db2 jdbc connection, performing JNDI attack due to unrestricted connection parameters, and then achieve RCE with deserialization of untrusted data.\n\n### Remediation\n\nThis issue has been fixed in this release: https://github.com/geoserver/geoserver/releases/tag/2.27.0.\n\n## References\n\n* https://osgeo-org.atlassian.net/browse/GEOT-7725\n* https://nvd.nist.gov/vuln/detail/cve-2023-27867",
"id": "GHSA-g628-r368-6vh7",
"modified": "2026-07-15T21:49:53Z",
"published": "2026-06-11T20:34:00Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/geoserver/geoserver/security/advisories/GHSA-g628-r368-6vh7"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-27511"
},
{
"type": "PACKAGE",
"url": "https://github.com/geoserver/geoserver"
},
{
"type": "WEB",
"url": "https://github.com/geoserver/geoserver/releases/tag/2.27.0"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/cve-2023-27867"
},
{
"type": "WEB",
"url": "https://osgeo-org.atlassian.net/browse/GEOT-7725"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
],
"summary": "GeoServer DB2 DataStore Extension has a JNDI Vulnerability via Store Connection"
}
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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