CVE-2025-54796

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.

CVSS v3.1 Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-400 Uncontrolled Resource Consumption

CWE-833 CWE-833

CWE-1333 CWE-1333

Affected Products

Vendor	Product	Versions
9001	copyparty	< 1.18.9

References

Advisories & Patches

https://github.com/9001/copyparty/commit/09910ba80784c3980947d92f45db696398c0fd83 https://github.com/9001/copyparty/security/advisories/GHSA-5662-2rj7-f2v6 https://github.com/9001/copyparty/security/advisories/GHSA-5662-2rj7-f2v6

Exploits

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

Other References

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

Frequently Asked Questions

What is CVE-2025-54796? +

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. It has a CVSS v3.1 base score of 7.5 (HIGH).

How severe is CVE-2025-54796? +

CVE-2025-54796 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2025-54796? +

CVE-2025-54796 affects products from 9001, specifically: copyparty. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-54796? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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