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7.5
HIGH CVSS 3.1
CVE-2025-54796
Copyparty is vulnerable to Regex Denial of Service (ReDoS) attacks through "Recent Uploads" page
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.

INFO

Published Date :

Aug. 2, 2025, 12:15 a.m.

Last Modified :

Sept. 12, 2025, 4:13 p.m.

Remotely Exploit :

Yes !

Source :

[email protected]
Affected Products

The following products are affected by CVE-2025-54796 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Copyparty_project copyparty
1 9001 copyparty
: Total Affected Vendor : 2 | Products : 2
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 HIGH [email protected]
Solution
Update copyparty to fix a denial of service vulnerability in the "Recent Uploads" filter.
  • Update copyparty to version 1.18.9 or later.
  • Disable the "Recent Uploads" page if updating is not possible.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2025-54796.

URL Resource
https://github.com/9001/copyparty/commit/09910ba80784c3980947d92f45db696398c0fd83 Patch
https://github.com/9001/copyparty/releases/tag/v1.18.9 Release Notes
https://github.com/9001/copyparty/security/advisories/GHSA-5662-2rj7-f2v6 Exploit Vendor Advisory
https://github.com/9001/copyparty/security/advisories/GHSA-5662-2rj7-f2v6 Exploit Vendor Advisory
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-54796 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2025-54796 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2025-54796 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2025-54796 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • Initial Analysis by [email protected]

    Sep. 12, 2025

    Action Type Old Value New Value
    Added CPE Configuration OR *cpe:2.3:a:9001:copyparty:*:*:*:*:*:*:*:* versions up to (excluding) 1.18.9
    Added Reference Type GitHub, Inc.: https://github.com/9001/copyparty/commit/09910ba80784c3980947d92f45db696398c0fd83 Types: Patch
    Added Reference Type GitHub, Inc.: https://github.com/9001/copyparty/releases/tag/v1.18.9 Types: Release Notes
    Added Reference Type CISA-ADP: https://github.com/9001/copyparty/security/advisories/GHSA-5662-2rj7-f2v6 Types: Exploit, Vendor Advisory
    Added Reference Type GitHub, Inc.: https://github.com/9001/copyparty/security/advisories/GHSA-5662-2rj7-f2v6 Types: Exploit, Vendor Advisory
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Aug. 04, 2025

    Action Type Old Value New Value
    Added Reference https://github.com/9001/copyparty/security/advisories/GHSA-5662-2rj7-f2v6
  • New CVE Received by [email protected]

    Aug. 02, 2025

    Action Type Old Value New Value
    Added 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.
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Added CWE CWE-400
    Added CWE CWE-833
    Added CWE CWE-1333
    Added Reference https://github.com/9001/copyparty/commit/09910ba80784c3980947d92f45db696398c0fd83
    Added Reference https://github.com/9001/copyparty/releases/tag/v1.18.9
    Added Reference https://github.com/9001/copyparty/security/advisories/GHSA-5662-2rj7-f2v6
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 7.5
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact