CVE-2026-57480 | Parse Server is an open source backend that can be deployed … | CVSS 8.7 HIGH

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.12 and 8.6.82, deeply nested $or, $and, and $nor query condition operators in the REST API or LiveQuery query handling could trigger exponential-time processing in the internal query-traversal helper and block the Node.js event loop. This issue is fixed in versions 9.9.1-alpha.12 and 8.6.82.

Metadata

CVE ID: CVE-2026-57480
State: PUBLISHED
Assigner: GitHub_M
Reserved: 2026-06-24 14:53 UTC
Published: 2026-07-08 20:53 UTC
Last updated: 2026-07-08 20:53 UTC
Primary CWE: CWE-407
CWE-407: Inefficient Algorithmic Complexity
Vendor / Product: parse-community / parse-server
Sources: cve.org · NVD

Severity & Metrics

8.7 HIGH CVSS 4.0

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Affected products (1)

Vendor	Product	Platform	Versions
parse-community	parse-server	—	>= 9.0.0-alpha.1, < 9.9.1-alpha.12, < 8.6.82

Weakness (CWE)

CWE	Source	Description
CWE-407	cna	CWE-407: Inefficient Algorithmic Complexity

CVSS scores (1)

Score	Severity	Version	Source	Vector
8.7	HIGH	4.0	cna	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

References (7)

https://github.com/parse-community/parse-server/security/advisories/GHSA-cgxm-vr2f-6fj8 https://github.com/parse-community/parse-server/security/advisories/GHSA-cgxm-vr2f-6fj8
https://github.com/parse-community/parse-server/pull/10511 https://github.com/parse-community/parse-server/pull/10511
https://github.com/parse-community/parse-server/pull/10512 https://github.com/parse-community/parse-server/pull/10512
https://github.com/parse-community/parse-server/commit/0f5d2ad77b422dc904458254548be87397fc6e9b https://github.com/parse-community/parse-server/commit/0f5d2ad77b422dc904458254548be87397fc6e9b
https://github.com/parse-community/parse-server/commit/1103c7a890e0455ba3dccd4bc5db17efe1789c9a https://github.com/parse-community/parse-server/commit/1103c7a890e0455ba3dccd4bc5db17efe1789c9a
https://github.com/parse-community/parse-server/releases/tag/8.6.82 https://github.com/parse-community/parse-server/releases/tag/8.6.82
https://github.com/parse-community/parse-server/releases/tag/9.9.1-alpha.12 https://github.com/parse-community/parse-server/releases/tag/9.9.1-alpha.12