{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0.1.6"
              },
              {
                "fixed": "0.2.4.4"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "ee704b41580925a2c6895c20e4b1ec25d8bc8ac4"
            },
            {
              "fixed": "845ad39b19bf99afeea571c6bae09695777e1460"
            },
            {
              "fixed": "0967f9758bf806131a3fcde54aa054c9b31e0ad7"
            }
          ],
          "repo": "https://github.com/maziggy/bambuddy",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-6mf4-q26m-47pv"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-636",
      "CWE-755"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53459.json"
  },
  "details": "Bambuddy is a self-hosted print archive and management system for Bambu Lab 3D printers. Starting in version 0.1.6 and prior to version 0.2.4.4, a fail-open in the authentication code allows any attacker to bypass authentication by flooding a public endpoint to exhaust resources causing database access to fail, granting unauthenticated access to all protected endpoints. Version 0.2.4.4 patches the issue.",
  "id": "CVE-2026-53459",
  "modified": "2026-09-17T03:30:38.772652886Z",
  "published": "2026-09-15T17:25:27.247Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/maziggy/bambuddy/blob/449502cc9fc1cec04f06d31512420eac729fd032/backend/app/core/auth.py#L473-L483"
    },
    {
      "type": "WEB",
      "url": "https://github.com/maziggy/bambuddy/blob/449502cc9fc1cec04f06d31512420eac729fd032/backend/app/main.py#L5314-L5316"
    },
    {
      "type": "WEB",
      "url": "https://github.com/maziggy/bambuddy/blob/main/CHANGELOG.md"
    },
    {
      "type": "WEB",
      "url": "https://github.com/maziggy/bambuddy/releases/tag/v0.2.4.4"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53459.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/maziggy/bambuddy/security/advisories/GHSA-6mf4-q26m-47pv"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53459"
    },
    {
      "type": "FIX",
      "url": "https://github.com/maziggy/bambuddy/commit/845ad39b19bf99afeea571c6bae09695777e1460"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Bambuddy's authentication fails open on database errors, allowing unauthenticated access to all endpoints"
}