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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.
Reserved 2025-07-29 | Published 2025-08-01 | Updated 2025-08-01 | Assigner GitHub_MCWE-400: Uncontrolled Resource Consumption
CWE-1333: Inefficient Regular Expression Complexity
github.com/...yparty/security/advisories/GHSA-5662-2rj7-f2v6
github.com/...ommit/09910ba80784c3980947d92f45db696398c0fd83
github.com/9001/copyparty/releases/tag/v1.18.9
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