CVE-2026-57480

HIGH

Parse Server: Denial of service via exponential-time processing of deeply nested query operators

Title source: cna
STIX 2.1

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.

References (7)

Core 7
Core References

Scores

CVSS v4 8.7
EPSS 0.0034
EPSS Percentile 26.1%
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-407
Status published
Products (2)
parse-community/parse-server < 8.6.82
parse-community/parse-server >= 9.0.0-alpha.1, < 9.9.1-alpha.12
Published Jul 08, 2026
Tracked Since Jul 09, 2026