CVE-2026-27818
TerriaJS-Server has a domain validation bypass vulnerability in its proxy allowlist
描述
### Impact A validation bug allows an attacker to proxy domains not explicitly allowed in the `proxyableDomains` configuration. The validation only checks if a hostname _ended_ with an allowed domain. This meant: If `example.com` is allowed in `proxyableDomains`: - ✅ example.com is allowed (correct) - ✅ api.example.com is allowed (correct) - ⚠️ maliciousexample.com is allowed (incorrect) An attacker could register maliciousexample.com and proxy content through `terriajs-server`, bypassing proxy restrictions. ### Patches All versions up to 4.0.2 are affected. Upgrade to 4.0.3 to address the vulnerability.
如何修補 CVE-2026-27818
要修補 CVE-2026-27818,請將受影響套件升級到下列已修補版本。
- —升級至 4.0.3 或更新版本
CVE-2026-27818 正在被利用嗎?
低 — EPSS 為 0.1%,目前沒有觀察到大規模利用活動。
受影響套件(1)
- from 0, < 4.0.3
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 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 |