GHSA-5662-2rj7-f2v6 (CVE-2025-54796)

Details

Summary

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.

PoC

https://127.0.0.1:3923/?ru&filter=(.+)+x

Impact

The server becomes fully inaccessible for a long time.

Affected Packages

copyparty

PyPI

Fixed in:

1.18.9

References

PACKAGE

https://github.com/9001/copyparty

WEB

https://github.com/9001/copyparty/commit/09910ba80784c3980947d92f45db696398c0fd83

WEB

https://github.com/9001/copyparty/releases/tag/v1.18.9

WEB

https://github.com/9001/copyparty/security/advisories/GHSA-5662-2rj7-f2v6

ADVISORY

https://github.com/advisories/GHSA-5662-2rj7-f2v6

ADVISORY

https://nvd.nist.gov/vuln/detail/CVE-2025-54796