GHSA-5662-2RJ7-F2V6

Vulnerability from github – Published: 2025-08-04 15:22 – Updated: 2025-08-04 15:22
VLAI
Summary
copyparty allows Regex Denial of Service (ReDoS) in the upload listing
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.

Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Show details on source website
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{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 1.18.8"
      },
      "package": {
        "ecosystem": "PyPI",
        "name": "copyparty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.18.9"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-54796"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-1333"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-08-04T15:22:23Z",
    "nvd_published_at": "2025-08-02T00:15:26Z",
    "severity": "HIGH"
  },
  "details": "### Summary\nThe `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.\n\n### PoC\n`https://127.0.0.1:3923/?ru\u0026filter=(.+)+x`\n\n### Impact\nThe server becomes fully inaccessible for a long time.",
  "id": "GHSA-5662-2rj7-f2v6",
  "modified": "2025-08-04T15:22:23Z",
  "published": "2025-08-04T15:22:23Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/9001/copyparty/security/advisories/GHSA-5662-2rj7-f2v6"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-54796"
    },
    {
      "type": "WEB",
      "url": "https://github.com/9001/copyparty/commit/09910ba80784c3980947d92f45db696398c0fd83"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/9001/copyparty"
    },
    {
      "type": "WEB",
      "url": "https://github.com/9001/copyparty/releases/tag/v1.18.9"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "copyparty allows Regex Denial of Service (ReDoS) in the upload listing"
}



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