Information disclosure in Parse-Community Parse-Server

CVE-2026-57481

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.9.1-alpha.13 and 8.6.83, a LiveQuery subscriber could receive object field values they were not authorized to read when a single save changed both an object field and the subscriber's ACL read access, because leave and enter events included the wrong object state. This issue is fixed in versions 9.9.1-alpha.13 and 8.6.83.

Vulnerability class: Information Disclosure

EPSS: 0.004 (32.1th percentile) — read the EPSS interpretation.

Affected products

Weakness classification (CWE)

References