CVE-2025-54796

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

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.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.03%
Affected: 9001 copyparty
Published at:
Updated at:

References

Link Tags
https://github.com/9001/copyparty/security/advisories/GHSA-5662-2rj7-f2v6
https://github.com/9001/copyparty/commit/09910ba80784c3980947d92f45db696398c0fd83
https://github.com/9001/copyparty/releases/tag/v1.18.9

Frequently Asked Questions

What is the severity of CVE-2025-54796?
CVE-2025-54796 has been scored as a high severity vulnerability.
How to fix CVE-2025-54796?
To fix CVE-2025-54796, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-54796 being actively exploited in the wild?
It is possible that CVE-2025-54796 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-54796?
CVE-2025-54796 affects 9001 copyparty.
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