CVE-2025-54796
copyparty allows Regex Denial of Service (ReDoS) in the upload listing
7.5
HIGH
CVSS 3.1
EPSS 0.32%
Description
### 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.
How to fix CVE-2025-54796
To remediate CVE-2025-54796, upgrade the affected package to a fixed version below.
- —upgrade to 1.18.9 or later
Is CVE-2025-54796 being exploited?
Low — EPSS is 0.3%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 1.18.9
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |