{
  "id": "CVE-2025-3248",
  "url": "https://spydr.io/cve/CVE-2025-3248",
  "published": "2025-04-07T15:15:44.897Z",
  "modified": "2026-07-14T23:17:27.010Z",
  "score": 9.8,
  "severity": "critical",
  "cvss_version": "3.1",
  "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
  "score_source": "NVD",
  "epss": 0.99993,
  "epss_percentile": 0.99987,
  "exploited": true,
  "kev": {
    "added": "2025-05-05",
    "due": "2025-05-26",
    "action": "Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.",
    "ransomware": "Known",
    "name": "Langflow Missing Authentication Vulnerability",
    "notes": "This vulnerability affects a common open-source project, third-party library, or a protocol used by different products. For more information, please see: https://github.com/advisories/GHSA-c995-4fw3-j39m ; https://nvd.nist.gov/vuln/detail/CVE-2025-3248"
  },
  "ssvc_exploitation": "active",
  "vendors": [
    "langflow-ai"
  ],
  "products": [
    "langflow-ai langflow"
  ],
  "cwes": [
    "CWE-306",
    "CWE-94"
  ],
  "description": "Langflow versions prior to 1.3.0 are susceptible to code injection in the /api/v1/validate/code endpoint. A remote and unauthenticated attacker can send crafted HTTP requests to execute arbitrary code.",
  "status": "Analyzed",
  "score_type": "Primary",
  "scores": {
    "cvss_v40": null,
    "cvss_v31": 9.8,
    "cvss_v30": null
  },
  "references": [
    {
      "url": "https://github.com/langflow-ai/langflow/pull/6911",
      "tags": [
        "Patch"
      ]
    },
    {
      "url": "https://github.com/langflow-ai/langflow/releases/tag/1.3.0",
      "tags": [
        "Release Notes"
      ]
    },
    {
      "url": "https://www.horizon3.ai/attack-research/disclosures/unsafe-at-any-speed-abusing-python-exec-for-unauth-rce-in-langflow-ai/",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://www.vulncheck.com/advisories/langflow-unauthenticated-rce",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-3248",
      "tags": [
        "US Government Resource"
      ]
    }
  ],
  "nvd_url": "https://nvd.nist.gov/vuln/detail/CVE-2025-3248",
  "covered_in": [],
  "attribution": [
    {
      "source": "NVD",
      "url": "https://nvd.nist.gov",
      "notice": "This product uses data from the NVD API but is not endorsed or certified by the NVD."
    },
    {
      "source": "CISA KEV",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "notice": "Known exploited vulnerabilities from the CISA KEV catalog."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss",
      "notice": "Exploit prediction scores from FIRST EPSS."
    }
  ]
}