CVE-2026-30835

MEDIUM EPSS 25.4%
Published Mar 6, 20263mo ago · Modified Jun 17, 20261w ago
6.9 CVSS 4.0
Medium
Find Similar
Published Mar 6, 2026 3mo ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
6.9
Exploitability
—
Impact
—
Vector string
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
25.4% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-209

Affected Products 7

VendorProductVersionRange
parseplatformparse-server* <8.6.7
parseplatformparse-server*≥9.0.0  –  <9.5.0
parseplatformparse-server9.5.0any
parseplatformparse-server9.5.0any
parseplatformparse-server9.5.0any
parseplatformparse-server9.5.0any
parseplatformparse-server9.5.0any

References 3

  • github.com https://github.com/parse-community/parse-server/releases/tag/8.6.7
    ProductRelease Notes
  • github.com https://github.com/parse-community/parse-server/releases/tag/9.5.0-alpha.6
    ProductRelease Notes
  • github.com https://github.com/parse-community/parse-server/security/advisories/GHSA-9cp7-3q5w-j92g
    PatchVendor Advisory

Remediation

  • github.com https://github.com/parse-community/parse-server/security/advisories/GHSA-9cp7-3q5w-j92g
    PatchVendor Advisory