CVE-2026-30966Network attack vector

Role escalation via unrestricted internal relationship tables

Published Mar 10, 2026 · Updated Mar 10, 2026

Improper access control in Parse Server before 8.6.20 and 9.0.0 through 9.5.2-alpha.6 allows remote attackers to gain protected roles. The REST and GraphQL request paths pass client operations on internal _Join relationship tables through role enforcement that does not require a master or maintenance key. Possession of the application key is sufficient for remote attackers to join a Parse Role or bypass pointerFields CLP and obtain its read, write, and delete permissions.

CVSS severity10.0
Critical
EPSS probability0.38%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in Parse Server before 8.6.20 and 9.0.0 through 9.5.2-alpha.6 allows remote attackers to gain protected roles. The REST and GraphQL request paths pass client operations on internal _Join relationship tables through role enforcement that does not require a master or maintenance key. Possession of the application key is sufficient for remote attackers to join a Parse Role or bypass pointerFields CLP and obtain its read, write, and delete permissions.

The record

CVE
CVE-2026-30966
Published
Mar 10, 2026
Updated
Mar 10, 2026
Vendor
Parse Platform
Product
Parse Server
Classifications
CWE-284, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 10, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 8.6.20
  2. Affected versionversion=>= 9.0.0 < 9.5.2-alpha.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Parse Platform · Parse Serverversion=< 8.6.20; version=>= 9.0.0 < 9.5.2-alpha.7

Published CVSS scores

10.0GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-284Improper Access Control
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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