Description
The qs module before 1.0.0 does not have an option or default for specifying object depth and when parsing a string representing a deeply nested object will block the event loop for long periods of time. An attacker could leverage this to cause a temporary denial-of-service condition, for example, in a web application, other requests would not be processed while this blocking is occurring.
References (1)
Core 1
Core References
Third Party Advisory x_refsource_misc
https://nodesecurity.io/advisories/28
Scores
CVSS v3
7.5
EPSS
0.0129
EPSS Percentile
66.5%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Details
CWE
CWE-399
CWE-400
Status
published
Products (2)
npm/qs
0 - 1.0.0npm
qs_project/qs
< 1.0.0
Published
May 31, 2018
Tracked Since
Feb 18, 2026