Description
Copyparty is a portable file server. Versions prior to 1.18.9, the filter parameter for the "Recent Uploads" page allows arbitrary RegExes. If this feature is enabled (which is the default), an attacker can craft a filter which deadlocks the server. This is fixed in version 1.18.9.
Scores
CVSS v3
7.5
EPSS
0.0010
EPSS Percentile
28.0%
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
poc
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-1333
CWE-400
CWE-833
Status
published
Products (2)
9001/copyparty
< 1.18.9
pypi/copyparty
0 - 1.18.9PyPI
Published
Aug 02, 2025
Tracked Since
Feb 18, 2026