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CVE-2026-57481— Parse Server: LiveQuery discloses object data to a subscriber across an ACL read-access change

Quick assessment

Affected
parse-community parse-server
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Parse Platform Parse Server是Parse Platform组织开源的一个开源后端,可以部署到任何可以运行 Node.js 的基础设施。 Parse Platform Parse Server 9.9.1-alpha.13之前版本和8.6.83之前版本存在信息泄露漏洞，该漏洞源于LiveQuery订阅者能够接收未授权读取的对象字段值，因为离开和进入事件包含了错误的对象状态。

AI Predicted 8.6 Difficulty: Easy EPSS 0.53% · P43

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage

Affected Version Matrix 2

VendorProduct Version RangeStatus
parse-community parse-server >= 9.0.0-alpha.1, < 9.9.1-alpha.13 affected
< 8.6.83 affected
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I. Basic Information for CVE-2026-57481

Vulnerability Information
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Vulnerability Title
Parse Server: LiveQuery discloses object data to a subscriber across an ACL read-access change
Source: CVE Program / CVE List V5
Vulnerability Description
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.9.1-alpha.13 and 8.6.83, a LiveQuery subscriber could receive object field values they were not authorized to read when a single save changed both an object field and the subscriber's ACL read access, because leave and enter events included the wrong object state. This issue is fixed in versions 9.9.1-alpha.13 and 8.6.83.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
Parse Platform Parse Server 日志信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Parse Platform Parse Server是Parse Platform组织开源的一个开源后端,可以部署到任何可以运行 Node.js 的基础设施。 Parse Platform Parse Server 9.9.1-alpha.13之前版本和8.6.83之前版本存在信息泄露漏洞，该漏洞源于LiveQuery订阅者能够接收未授权读取的对象字段值，因为离开和进入事件包含了错误的对象状态。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
parse-community parse-server >= 9.0.0-alpha.1, < 9.9.1-alpha.13 -

II. Public POCs for CVE-2026-57481

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III. Intelligence Information for CVE-2026-57481

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Patches & Fixes for CVE-2026-57481 (4)

Vendor Advisories for CVE-2026-57481 (1)

Vendor Pages for CVE-2026-57481 (2)

Same Patch Batch · parse-community · 2026-07-08 · 3 CVEs total

CVE-2026-57480 Parse Server: Denial of service via exponential-time processing of deeply nested query ope
CVE-2026-55778 Parse Server: Stored XSS via non-standard file extension bypassing file upload extension b

IV. Related Vulnerabilities

Same product: parse-server
Same vendor: parse-community
Same weakness: CWE-200

V. Comments for CVE-2026-57481

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