CVE-2026-33508
Parse Server: LiveQuery subscription query depth bypass
7.5
HIGH
CVSS 3.1
EPSS 0.34%
描述
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.56 and 9.6.0, Parse Server's LiveQuery component does not enforce the requestComplexity.queryDepth configuration setting when processing WebSocket subscription requests. An attacker can send a subscription with deeply nested logical operators, causing excessive recursion and CPU consumption that degrades or disrupts service availability. This issue has been patched in versions 8.6.56 and 9.6.0
如何修補 CVE-2026-33508
要修補 CVE-2026-33508,請將受影響套件升級到下列已修補版本。
- —升級至 8.6.56 或更新版本
- —升級至 9.6.0-alpha.45 或更新版本
CVE-2026-33508 正在被利用嗎?
低 — EPSS 為 0.3%,目前沒有觀察到大規模利用活動。
受影響套件(2)
- from 0, < 8.6.56, >= 9.0.0, < 9.6.0
- >= 9.0.0, < 9.6.0-alpha.45
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:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N |
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |