Parse Server before 8.6.103 and 9.0.0 before 9.10.5-alpha.4 contains an information disclosure vulnerability in LiveQuery. Its subscription hash omits constraints next to a $or operator, including the _Session owner filter and beforeSubscribe constraints, so distinct subscriptions are grouped together. Authenticated clients subscribing with $or queries can receive other users' events, including session tokens usable for impersonation.

Project Subscriptions

Vendors Products
Parseplatform Subscribe
Parse-server Subscribe
Advisories

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Fixes

Solution

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Workaround

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History

Sun, 25 Oct 2026 13:45:00 +0000

Type Values Removed Values Added
Description Parse Server before 8.6.103 and 9.0.0 before 9.10.5-alpha.4 contains an information disclosure vulnerability in LiveQuery. Its subscription hash omits constraints next to a $or operator, including the _Session owner filter and beforeSubscribe constraints, so distinct subscriptions are grouped together. Authenticated clients subscribing with $or queries can receive other users' events, including session tokens usable for impersonation.
Title Parse Server 9.0.0 before 9.10.5-alpha.4 LiveQuery Information Disclosure via $or Subscriptions
First Time appeared Parseplatform
Parseplatform parse-server
Weaknesses CWE-200
CPEs cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:*:*:*
Vendors & Products Parseplatform
Parseplatform parse-server
References
Metrics cvssV4_0

{'score': 6, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-25T13:20:06.298Z

Reserved: 2026-10-25T12:24:12.572Z

Link: CVE-2026-116161

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-25T14:16:54.843

Modified: 2026-10-25T14:16:54.843

Link: CVE-2026-116161

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses