CVE-2026-57480: CWE-407: Inefficient Algorithmic Complexity in parse-community parse-server
Parse Server versions prior to 8.6.82 and including 9.9.1-alpha.12 are vulnerable to inefficient algorithmic complexity in query processing. Specifically, deeply nested $or, $and, and $nor operators in REST API or LiveQuery queries can cause exponential-time processing, blocking the Node.js event loop. This can degrade server performance or cause denial of service. The issue is fixed starting from versions 8.6.82 and 9.9.1-alpha.12.
AI Analysis
Technical Summary
CVE-2026-57480 describes an inefficient algorithmic complexity vulnerability (CWE-407) in parse-community's parse-server. The vulnerability arises from the handling of deeply nested logical query operators ($or, $and, $nor) in REST API and LiveQuery query processing. This causes exponential-time processing in the internal query-traversal helper, leading to blocking of the Node.js event loop and potential denial of service. The vulnerability affects versions prior to 8.6.82 and the 9.9.1-alpha.12 version. The issue is resolved in versions 8.6.82 and 9.9.1-alpha.12.
Potential Impact
Exploitation of this vulnerability can cause the parse-server to spend exponential time processing crafted queries with deeply nested logical operators, resulting in blocking the Node.js event loop. This can lead to denial of service by making the server unresponsive to legitimate requests. There are no known exploits in the wild at this time.
Mitigation Recommendations
Upgrade parse-server to version 8.6.82 or later, or to version 9.9.1-alpha.12 or later, where the issue is fixed. Since the vendor advisory does not specify an official remediation level or patch beyond these versions, applying these updates is the recommended mitigation. Patch status is confirmed by the version information in the description.
CVE-2026-57480: CWE-407: Inefficient Algorithmic Complexity in parse-community parse-server
Description
Parse Server versions prior to 8.6.82 and including 9.9.1-alpha.12 are vulnerable to inefficient algorithmic complexity in query processing. Specifically, deeply nested $or, $and, and $nor operators in REST API or LiveQuery queries can cause exponential-time processing, blocking the Node.js event loop. This can degrade server performance or cause denial of service. The issue is fixed starting from versions 8.6.82 and 9.9.1-alpha.12.
CVSS v4.0
Score 8.7high
Affected software
pkg:npm/parse-community/parse-serverRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-57480 describes an inefficient algorithmic complexity vulnerability (CWE-407) in parse-community's parse-server. The vulnerability arises from the handling of deeply nested logical query operators ($or, $and, $nor) in REST API and LiveQuery query processing. This causes exponential-time processing in the internal query-traversal helper, leading to blocking of the Node.js event loop and potential denial of service. The vulnerability affects versions prior to 8.6.82 and the 9.9.1-alpha.12 version. The issue is resolved in versions 8.6.82 and 9.9.1-alpha.12.
Potential Impact
Exploitation of this vulnerability can cause the parse-server to spend exponential time processing crafted queries with deeply nested logical operators, resulting in blocking the Node.js event loop. This can lead to denial of service by making the server unresponsive to legitimate requests. There are no known exploits in the wild at this time.
Mitigation Recommendations
Upgrade parse-server to version 8.6.82 or later, or to version 9.9.1-alpha.12 or later, where the issue is fixed. Since the vendor advisory does not specify an official remediation level or patch beyond these versions, applying these updates is the recommended mitigation. Patch status is confirmed by the version information in the description.
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: 6a4ebdf5c9d9e3dbe3bf8b13
Added to database: 07/08/2026, 21:15:33 UTC
Last enriched: 07/08/2026, 21:28:22 UTC
Last updated: 07/08/2026, 21:28:22 UTC
Views: 3
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