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CVE

CVE-2026-27818

TerriaJS-Server has a domain validation bypass vulnerability in its proxy allowlist
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CVE

CVE-2026-27818

TerriaJS-Server has a domain validation bypass vulnerability in its proxy allowlist

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.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
8.7
-
4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
C
H
U
0
-
C
H
U
-

Related Resources

No items found.

References

https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/27xxx/CVE-2026-27818.json, https://github.com/TerriaJS/terriajs-server/security/advisories/GHSA-w789-49fc-v8hr, https://nvd.nist.gov/vuln/detail/CVE-2026-27818, https://github.com/TerriaJS/terriajs-server/commit/3aaa5d9717162b245ae4569232bbe7d8673c913f

Severity

0

CVSS Score
0
10

Basic Information

Ecosystem
Base CVSS
0
EPSS Probability
0.00089%
EPSS Percentile
0.25064%
Introduced Version
0
Fix Available
2689f9966c59bc28f9c4d27c49b4fd06a097dfc4

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