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CVE-2026-29182— Parse Server: Cloud Hooks and Cloud Jobs bypass `readOnlyMasterKey` write restriction

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 Server是Parse Platform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 Server 8.6.4之前版本和9.4.1-alpha.3之前版本存在安全漏洞，该漏洞源于readOnlyMasterKey选项在某些端点被错误接受，可能导致数据渗漏。

AI Predicted 7.4 Difficulty: Easy EPSS 0.38% · P31
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I. Basic Information for CVE-2026-29182

Vulnerability Information
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Vulnerability Title
Parse Server: Cloud Hooks and Cloud Jobs bypass `readOnlyMasterKey` write restriction
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 versions 8.6.4 and 9.4.1-alpha.3, Parse Server's readOnlyMasterKey option allows access with master-level read privileges but is documented to deny all write operations. However, some endpoints incorrectly accept the readOnlyMasterKey for mutating operations. This allows a caller who only holds the readOnlyMasterKey to create, modify, and delete Cloud Hooks and to start Cloud Jobs, which can be used for data exfiltration. Any Parse Server deployment that uses the readOnlyMasterKey option is affected. Note than an attacker needs to know the readOnlyMasterKey to exploit this vulnerability. This issue has been patched in versions 8.6.4 and 9.4.1-alpha.3.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
Source: CVE Program / CVE List V5
Vulnerability Title
Parse Server 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Parse Server是Parse Platform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 Server 8.6.4之前版本和9.4.1-alpha.3之前版本存在安全漏洞，该漏洞源于readOnlyMasterKey选项在某些端点被错误接受，可能导致数据渗漏。
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 < 8.6.4 -

II. Public POCs for CVE-2026-29182

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III. Intelligence Information for CVE-2026-29182

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Patches & Fixes for CVE-2026-29182 (1)

Vendor Advisories for CVE-2026-29182 (1)

Other References for CVE-2026-29182 (1)

Same Patch Batch · parse-community · 2026-03-06 · 4 CVEs total

CVE-2026-30228 Parse Server: File creation and deletion bypasses `readOnlyMasterKey` write restriction
CVE-2026-30835 Parse Server: Malformed `$regex` query leaks database error details in API response
CVE-2026-30229 Parse Server: Endpoint `/loginAs` allows `readOnlyMasterKey` to gain full read and write a

IV. Related Vulnerabilities

Same product: parse-server
Same vendor: parse-community
Same weakness: CWE-863

V. Comments for CVE-2026-29182

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