CVE-2025-54796

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

Published Aug 1, 2025 CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2025-23411 copyparty allows Regex Denial of Service (ReDoS) in the upload listing
Github GHSA Github GHSA GHSA-5662-2rj7-f2v6 copyparty allows Regex Denial of Service (ReDoS) in the upload listing
History
Type Values Removed Values Added
CPEs cpe:2.3:a:9001:copyparty:*:*:*:*:*:*:*:*
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared 9001
9001 copyparty
Vendors & Products 9001
9001 copyparty
Type Values Removed Values 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.
Title Copyparty is vulnerable to Regex Denial of Service (ReDoS) attacks through "Recent Uploads" page
Weaknesses CWE-1333
CWE-400
CWE-833
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Aug 4, 2025, 3:19 PM
Reserved
Jul 29, 2025, 4:50 PM
Status
Analyzed
Published
Aug 2, 2025, 12:15 AM
Modified
Jun 17, 2026, 9:40 AM