CVE-2026-30835— Parse Server: Malformed `$regex` query leaks database error details in API response
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I. Basic Information for CVE-2026-30835
Vulnerability Information
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Vulnerability Title
Parse Server: Malformed `$regex` query leaks database error details in API response
Source: NVD (National Vulnerability Database)
Vulnerability Description
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.7 and 9.5.0-alpha.6, malformed $regex query parameter (e.g. [abc) causes the database to return a structured error object that is passed unsanitized through the API response. This leaks database internals such as error messages, error codes, code names, cluster timestamps, and topology details. The vulnerability is exploitable by any client that can send query requests, depending on the deployment's permission configuration. This issue has been patched in versions 8.6.7 and 9.5.0-alpha.6.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
通过错误消息导致的信息暴露
Source: NVD (National Vulnerability Database)
Vulnerability Title
Parse Server 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Parse Server是Parse Platform开源的一个开源后端，可以部署到任何可以运行 Node.js 的基础设施。 Parse Server 8.6.7之前版本和9.5.0-alpha.6之前版本存在安全漏洞，该漏洞源于格式错误的$regex查询参数会导致数据库错误对象未经清理即通过API响应泄露，可能导致泄露数据库内部信息。
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 | < 8.6.7 | - |
II. Public POCs for CVE-2026-30835
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|---|
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- Release 8.6.7 · parse-community/parse-server · GitHubx_refsource_MISC
- Release 9.5.0-alpha.6 · parse-community/parse-server · GitHubx_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2026-30835
Same Patch Batch · parse-community · 2026-03-06 · 4 CVEs total
| CVE-2026-29182 | Parse Server: Cloud Hooks and Cloud Jobs bypass `readOnlyMasterKey` write restriction | |
| CVE-2026-30228 | Parse Server: File creation and deletion bypasses `readOnlyMasterKey` write restriction | |
| CVE-2026-30229 | Parse Server: Endpoint `/loginAs` allows `readOnlyMasterKey` to gain full read and write a |
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Same vendor: parse-community
- CVE-2026-39381
Parse Server's Endpoint `/sessions/me` bypasses `_Session` ` - CVE-2026-39321
Parse Server has a login timing side-channel reveals user ex - CVE-2026-35200
Parse Server has a file upload Content-Type override via ext - CVE-2026-34784
Parse Server: Streaming file download bypasses afterFind fil - CVE-2026-34215
Parse Server: Auth data exposed via verify password endpoint
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