CVE-2026-34595
Parse Server: LiveQuery protected-field guard bypass via array-like logical operator value
描述
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.70 and 9.7.0, an authenticated user with find class-level permission can bypass the protectedFields class-level permission setting on LiveQuery subscriptions. By sending a subscription with a $or, $and, or $nor operator value as a plain object with numeric keys and a length property (an "array-like" object) instead of an array, the protected-field guard is bypassed. The subscription event firing acts as a binary oracle, allowing the attacker to infer whether a protected field matches a given test value. This issue has been patched in versions 8.6.70 and 9.7.0.
如何修補 CVE-2026-34595
要修補 CVE-2026-34595,請將受影響套件升級到下列已修補版本。
- —升級至 8.6.70 或更新版本
- —升級至 9.7.0-alpha.16 或更新版本
CVE-2026-34595 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, < 8.6.70, >= 9.0.0, < 9.7.0
- >= 9.0.0, < 9.7.0-alpha.16
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:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N |