CVE-2025-54796CWE-1333CWE-400CWE-833

Copyparty is vulnerable to Regex Denial of Service (ReDoS) attacks through "Recent Uploads" page

High · published August 1, 2025

CVSS v3.1
7.5
EPSS
0%
Percentile
38.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00461 · 38.9th percentile
Weaknesses
CWE-1333 · Inefficient Regular Expression Complexity; CWE-400 · Uncontrolled Resource Consumption; CWE-833 · Deadlock
Published
2025-08-01T23:38Z
EPSS history
Timeline
  • 01 AUG 23:38Z
    Copyparty is vulnerable to Regex Denial of Service (ReDoS) attacks through "Recent Uploads" page
    cvelistv5