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CVE-2025-54796

25
FAUCET Score

CVE-2025-54796 is a denial-of-service vulnerability affecting Copyparty versions prior to 1.18.9. An unauthenticated attacker can exploit a flaw in the "Recent Uploads" page's filter parameter, which improperly handles arbitrary regular expressions, to deadlock the server. With a CVSS score of 7.5 (High), this vulnerability allows for remote attacks with low complexity, leading to high availability impact. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.18.9CPE matchmatch criteria
cpe:2.3:a:9001:copyparty:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.40%
Probability of exploitation in next 30 days
EPSS Percentile
32.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0040 is in the 12th percentile among its peer group of 51,551 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
pippatch availablevia ghsa
Product: copypartyFixed in: 1.18.9

Vendor Advisories (1)

pipGHSA-5662-2rj7-f2v6high

copyparty allows Regex Denial of Service (ReDoS) in the upload listing

Aug 4, 2025

References

github.com / 9001/copyparty/commit/09910ba80784c3980947d92f45db696398c0fd83
Patch
github.com / 9001/copyparty/releases/tag/v1.18.9
Release Notes
github.com / 9001/copyparty/security/advisories/GHSA-5662-2rj7-f2v6
ExploitVendor Advisory