Parse Server has a protected fields bypass via logical query operators

CVE-2026-30962 → View on GitHub ↗ View on CVE.org ↗ View on NVD ↗

Description

Impact

The validation for protected fields only checks top-level query keys. By wrapping a query constraint on a protected field inside a logical operator, the check is bypassed entirely. This allows any authenticated user to query on protected fields to extract field values.

All Parse Server deployments have default protected fields and are vulnerable.

Patches

The fix adds recursive validation of sub-queries with logical operators, consistent with the existing recursive validation patterns.

Workarounds

Use a beforeFind trigger on affected classes to manually inspect the query for protected field references in logical operator sub-queries and reject the request.

References

  • GitHub security advisory: https://github.com/parse-community/parse-server/security/advisories/GHSA-72hp-qff8-4pvv
  • Fix Parse Server 9: https://github.com/parse-community/parse-server/releases/tag/9.5.2-alpha.6
  • Fix Parse Server 8: https://github.com/parse-community/parse-server/releases/tag/8.6.19

Basic information

Type
reviewed
Severity
high
Advisory on GitHub
Open advisory ↗
Repository advisory
Open repository advisory ↗
Source code
Browse source ↗
Published (advisory)
2026-03-11 00:19:57 UTC
Updated
2026-03-11 00:19:58 UTC
GitHub reviewed
2026-03-11 00:19:57 UTC
NVD published
2026-03-10

EPSS Score

Score Percentile
0.04% 12.05%

CVSS Scores

Base score Version Severity Vector
7.1 4.0 —
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network.
Attack complexity (AC:L)
Exploitation conditions are straightforward and stable.
Attack requirements (AT:N)
No additional preconditions are required beyond normal reachability.
Privileges required (PR:L)
Low privileges are required.
User interaction (UI:N)
No user interaction is required.
Vulnerable system confidentiality impact (VC:H)
High confidentiality impact on the vulnerable system.
Vulnerable system integrity impact (VI:N)
No integrity impact on the vulnerable system.
Vulnerable system availability impact (VA:N)
No availability impact on the vulnerable system.
Subsequent system confidentiality impact (SC:N)
No confidentiality impact on subsequent systems.
Subsequent system integrity impact (SI:N)
No integrity impact on subsequent systems.
Subsequent system availability impact (SA:N)
No availability impact on subsequent systems.

Identifiers

Type Value
GHSA GHSA-72hp-qff8-4pvv ↗
CVE CVE-2026-30962 ↗

CWEs

CWE id Name
CWE-284 Improper Access Control

Credits

  • 0xkakash1 (reporter)
  • mtrezza (coordinator)

Affected packages (2)

Vulnerable version ranges and first patched releases as published by GitHub.

Ecosystem Package Vulnerable range First patched Vulnerable functions
npm parse-server >= 9.0.0, < 9.5.2-alpha.6 9.5.2-alpha.6 —
npm parse-server < 8.6.19 8.6.19 —

References

cvelogic Threat Intelligence