CVE-2026-27818 | THREATINT

Description

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.

PUBLISHED Reserved 2026-02-24 | Published 2026-02-26 | Updated 2026-02-26 | Assigner GitHub_M

HIGH: 8.7CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

Problem types

CWE-20: Improper Input Validation

CWE-918: Server-Side Request Forgery (SSRF)

Product status

< 4.0.3

affected

References

github.com/...server/security/advisories/GHSA-w789-49fc-v8hr

github.com/...ommit/3aaa5d9717162b245ae4569232bbe7d8673c913f

cve.org (CVE-2026-27818)

nvd.nist.gov (CVE-2026-27818)

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