CVE-2026-57481: CWE-200: Exposure of Sensitive Information to an Unauthorized Actor in parse-community parse-server
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.
AI Analysis
Technical Summary
CVE-2026-57481 is an information exposure vulnerability in parse-server where LiveQuery subscribers could access unauthorized object field values due to improper handling of object state during simultaneous changes to object fields and ACL read access. This flaw affects versions prior to 8.6.83 and 9.9.1-alpha.13. The vulnerability is addressed in these fixed versions by correcting the state information included in leave and enter events.
Potential Impact
Unauthorized actors with LiveQuery subscriber privileges may gain access to sensitive object field data they are not authorized to read. The impact is limited by the requirement of at least limited privileges (PR:L) and the low CVSS score (2.3) indicates low severity with partial attack complexity and partial attack vector. No known exploits are reported in the wild.
Mitigation Recommendations
Upgrade parse-server to version 8.6.83 or later, or 9.9.1-alpha.13 or later, where this vulnerability is fixed. Patch status is confirmed by the vendor advisory stating the issue is resolved in these versions. No additional mitigation is indicated.
CVE-2026-57481: CWE-200: Exposure of Sensitive Information to an Unauthorized Actor in parse-community parse-server
Description
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.
CVSS v4.0
Score 2.3low
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-57481 is an information exposure vulnerability in parse-server where LiveQuery subscribers could access unauthorized object field values due to improper handling of object state during simultaneous changes to object fields and ACL read access. This flaw affects versions prior to 8.6.83 and 9.9.1-alpha.13. The vulnerability is addressed in these fixed versions by correcting the state information included in leave and enter events.
Potential Impact
Unauthorized actors with LiveQuery subscriber privileges may gain access to sensitive object field data they are not authorized to read. The impact is limited by the requirement of at least limited privileges (PR:L) and the low CVSS score (2.3) indicates low severity with partial attack complexity and partial attack vector. No known exploits are reported in the wild.
Mitigation Recommendations
Upgrade parse-server to version 8.6.83 or later, or 9.9.1-alpha.13 or later, where this vulnerability is fixed. Patch status is confirmed by the vendor advisory stating the issue is resolved in these versions. No additional mitigation is indicated.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-06-24T14:53:40.110Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a4ebdf5c9d9e3dbe3bf8b1c
Added to database: 07/08/2026, 21:15:33 UTC
Last enriched: 07/16/2026, 09:55:11 UTC
Last updated: 08/22/2026, 10:52:10 UTC
Views: 97
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