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OpenAdvisories
High · 7.5 CVE-2025-54796 EUVD-2025-23411GHSA-5662-2rj7-f2v6PYSEC-2026-1275

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

Published Aug 1, 2025 · Updated Aug 4, 2025 · Assigned by GitHub_M

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.

Affected products

VendorProductAffectedFixed
9001 copyparty < 1.18.9 —

Affected packages

EcosystemPackageAffectedFixedRecord
PyPI copyparty < 1.18.9 1.18.9 GHSA-5662-2rj7-f2v6

References