parse-community Parse Server LiveQuery information disclosure

Summaryinfo

A vulnerability classified as problematic has been found in parse-community Parse Server. Affected by this issue is some unknown functionality of the component LiveQuery. This manipulation causes information disclosure. The identification of this vulnerability is CVE-2026-116161. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in parse-community Parse Server (version now known). It has been declared as problematic. Affected by this vulnerability is some unknown processing of the component LiveQuery. The manipulation with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality. The summary by CVE is:

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.

The advisory is shared at github.com. This vulnerability is known as CVE-2026-116161 since 10/25/2026. The exploitation appears to be easy. The attack can be launched remotely. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1592 for this issue.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Vendor

• parse-community

Name

• Parse Server

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CPE 2.2info

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