CVE-2026-27818

TerriaJS-Server is a NodeJS Express server for TerriaJS, a library for building web-based geospatial data explorers. A validation bug in versions prior to 4.0.3 allows an attacker to proxy domains not explicitly allowed in the `proxyableDomains` configuration. Version 4.0.3 fixes the issue.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/TerriaJS/terriajs-server/commit/3aaa5d9717162b245ae4569232bbe7d8673c913f	Patch
https://github.com/TerriaJS/terriajs-server/security/advisories/GHSA-w789-49fc-v8hr	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:terria:terriajs-server:*:*:*:*:*:node.js:*:*

History

04 Mar 2026, 21:12

Type	Values Removed	Values Added
Summary		(es) TerriaJS-Server es un servidor NodeJS Express para TerriaJS, una biblioteca para construir exploradores de datos geoespaciales basados en la web. Un error de validación en versiones anteriores a la 4.0.3 permite a un atacante hacer proxy de dominios no permitidos explícitamente en la configuración 'proxyableDomains'. La versión 4.0.3 soluciona el problema.
References	~~() https://github.com/TerriaJS/terriajs-server/commit/3aaa5d9717162b245ae4569232bbe7d8673c913f -~~	() https://github.com/TerriaJS/terriajs-server/commit/3aaa5d9717162b245ae4569232bbe7d8673c913f - Patch
References	~~() https://github.com/TerriaJS/terriajs-server/security/advisories/GHSA-w789-49fc-v8hr -~~	() https://github.com/TerriaJS/terriajs-server/security/advisories/GHSA-w789-49fc-v8hr - Vendor Advisory
CPE		cpe:2.3:a:terria:terriajs-server::::::node.js::*
First Time		Terria terriajs-server Terria
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.5

26 Feb 2026, 00:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-02-26 00:16

Updated : 2026-03-04 21:12

NVD link : CVE-2026-27818

Mitre link : CVE-2026-27818

CVE.ORG link : CVE-2026-27818

JSON object : View

Products Affected

terria

terriajs-server

CWE

CWE-20

Improper Input Validation

CWE-918

Server-Side Request Forgery (SSRF)

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