Description
path-to-regexp turns path strings into a regular expressions. In certain cases, path-to-regexp will output a regular expression that can be exploited to cause poor performance. Because JavaScript is single threaded and regex matching runs on the main thread, poor performance will block the event loop and lead to a DoS. The bad regular expression is generated any time you have two parameters within a single segment, separated by something that is not a period (.). For users of 0.1, upgrade to 0.1.10. All other users should upgrade to 8.0.0.
Scores
CVSS v3
7.5
EPSS
0.0006
EPSS Percentile
19.7%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-1333
Status
published
Products (3)
npm/path-to-regexp
0.2.0 - 1.9.0npm
pillarjs/path-to-regexp
< 0.1.10
pillarjs/path-to-regexp
>= 0.2.0, < 8.0.0
Published
Sep 09, 2024
Tracked Since
Feb 18, 2026