CVE-2026-30241
Mercurius's queryDepth limit bypassed for WebSocket subscriptions
描述
## Description Mercurius fails to enforce the configured queryDepth limit on GraphQL subscription queries received over WebSocket connections. The depth check is correctly applied to HTTP queries and mutations, but subscription queries are parsed and executed without invoking the depth validation. This allows a remote client to submit arbitrarily deeply nested subscription queries over WebSocket, bypassing the intended depth restriction. On schemas with recursive types, this can lead to denial of service through exponential data resolution on each subscription event. ## Workarounds Disable subscriptions and, in general, queries over the WebSocket.
如何修補 CVE-2026-30241
要修補 CVE-2026-30241,請將受影響套件升級到下列已修補版本。
- —升級至 16.8.0 或更新版本
CVE-2026-30241 正在被利用嗎?
低 — EPSS 為 0.4%,目前沒有觀察到大規模利用活動。
受影響套件(1)
- from 0, < 16.8.0
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:L/VA:L/SC:N/SI:N/SA:N/E:U |