CVE-2026-30947Network attack vector

Unauthenticated data disclosure via missing LiveQuery CLP checks

Published Mar 10, 2026 · Updated Mar 10, 2026

Incorrect authorization in Parse Server before 8.6.16 and 9.0.0 through 9.5.2-alpha.2 allows remote attackers to read LiveQuery events. ParseLiveQueryServer creates subscriptions without calling SchemaController.validatePermission on the target class's CLP, then delivers matching object changes. LiveQuery and CLP must both be configured; no account is required, and the exposure is limited to real-time object-event data.

CVSS severity8.7
High
EPSS probability0.43%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect authorization in Parse Server before 8.6.16 and 9.0.0 through 9.5.2-alpha.2 allows remote attackers to read LiveQuery events. ParseLiveQueryServer creates subscriptions without calling SchemaController.validatePermission on the target class's CLP, then delivers matching object changes. LiveQuery and CLP must both be configured; no account is required, and the exposure is limited to real-time object-event data.

The record

CVE
CVE-2026-30947
Published
Mar 10, 2026
Updated
Mar 10, 2026
Vendor
Parse Platform
Product
Parse Server
Classifications
CWE-863, 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=< 8.6.16
  2. Affected versionversion=>= 9.0.0 < 9.5.2-alpha.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Parse Platform · Parse Serverversion=< 8.6.16; version=>= 9.0.0 < 9.5.2-alpha.3

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
8.7GitHub, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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-863Incorrect Authorization
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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