{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "9ea8108cbfd3ecb53bfef39b8b7b5d047f3f4ac8"
            }
          ],
          "repo": "https://github.com/dedsecinside/torbot",
          "type": "GIT"
        }
      ]
    },
    {
      "ranges": [
        {
          "database_specific": {
            "versions": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "0.11.0"
              },
              {
                "introduced": "0"
              },
              {
                "last_affected": "0.20.0"
              }
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "453cb70ba01d47c114e95356a1faeb9e95b98788"
            },
            {
              "introduced": "0"
            },
            {
              "last_affected": "9c35f185c0d44c3cb1c7433c66e3dfbb921e5e54"
            }
          ],
          "repo": "https://github.com/kvesteri/validators",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-72qw-p7hh-m3ff"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-1333"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/45xxx/CVE-2023-45813.json"
  },
  "details": "Torbot is an open source tor network intelligence tool. In affected versions the `torbot.modules.validators.validate_link function` uses the python-validators URL validation regex. This particular regular expression has an exponential complexity which allows an attacker to cause an application crash using a well-crafted argument. An attacker can use a well-crafted URL argument to exploit the vulnerability in the regular expression and cause a Denial of Service on the system. The validators file has been removed in version 4.0.0. Users are advised to upgrade. There are no known workarounds for this vulnerability.",
  "id": "CVE-2023-45813",
  "modified": "2026-04-01T23:09:25.683202308Z",
  "published": "2023-10-18T20:26:44.531Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/45xxx/CVE-2023-45813.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/DedSecInside/TorBot/security/advisories/GHSA-72qw-p7hh-m3ff"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-45813"
    },
    {
      "type": "FIX",
      "url": "https://github.com/DedSecInside/TorBot/commit/ef6e06bc7785355b1701d5524eb4550441086ac4"
    }
  ],
  "schema_version": "1.7.3",
  "severity": [
    {
      "score": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Inefficient Regular Expression Complexity in TorBot"
}