{
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            "tags": [
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            "value": "CVE-2025-34291 added to CISA KEV"
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        "title": "CISA ADP Vulnrichment"
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    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "modules": [
            "CORSMiddleware configuration",
            "refresh token cookie handling"
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          "packageURL": "pkg:github/langflow-ai/langflow",
          "product": "Langflow",
          "repo": "https://github.com/langflow-ai/langflow",
          "vendor": "Langflow",
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        {
          "nodes": [
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              "negate": false,
              "operator": "OR"
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        {
          "lang": "en",
          "type": "finder",
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              "lang": "en",
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          "capecId": "CAPEC-21",
          "descriptions": [
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              "lang": "en",
              "value": "CAPEC-21 Exploitation of Trusted Identifiers"
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      "metrics": [
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            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
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            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 9.4,
            "baseSeverity": "CRITICAL",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
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            "subConfidentialityImpact": "HIGH",
            "subIntegrityImpact": "HIGH",
            "userInteraction": "PASSIVE",
            "valueDensity": "NOT_DEFINED",
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            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-346",
              "description": "CWE-346 Origin Validation Error",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-14T22:25:54.449Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
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      "references": [
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          "tags": [
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            "exploit"
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          "url": "https://www.obsidiansecurity.com/blog/cve-2025-34291-critical-account-takeover-and-rce-vulnerability-in-the-langflow-ai-agent-workflow-platform"
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          ],
          "url": "https://github.com/langflow-ai/langflow"
        },
        {
          "tags": [
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          "url": "https://www.vulncheck.com/advisories/langflow-cors-misconfiguration-to-token-hijack-and-rce"
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      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Langflow \u003c= 1.6.9 CORS Misconfiguration to Token Hijack \u0026 RCE",
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        "engine": "Vulnogram 0.4.0"
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    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2025-34291",
    "datePublished": "2025-12-05T22:27:26.438Z",
    "dateReserved": "2025-04-15T19:15:22.581Z",
    "dateUpdated": "2026-07-14T22:25:54.449Z",
    "state": "PUBLISHED"
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}

{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 1.6.9"
      },
      "package": {
        "ecosystem": "PyPI",
        "name": "langflow"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.7.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-34291"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-346"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-01-21T21:30:47Z",
    "nvd_published_at": "2025-12-05T23:15:47Z",
    "severity": "CRITICAL"
  },
  "details": "Langflow versions up to and including 1.6.9 contain a chained vulnerability that enables account takeover and remote code execution. An overly permissive CORS configuration (allow_origins=\u0027*\u0027 with allow_credentials=True) combined with a refresh token cookie configured as SameSite=None allows a malicious webpage to perform cross-origin requests that include credentials and successfully call the refresh endpoint. An attacker-controlled origin can therefore obtain fresh access_token / refresh_token pairs for a victim session. Obtained tokens permit access to authenticated endpoints \u2014 including built-in code-execution functionality \u2014 allowing the attacker to execute arbitrary code and achieve full system compromise.",
  "id": "GHSA-577h-p2hh-v4mv",
  "modified": "2026-05-29T20:50:38Z",
  "published": "2025-12-06T00:31:36Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-34291"
    },
    {
      "type": "WEB",
      "url": "https://github.com/langflow-ai/langflow/pull/10139"
    },
    {
      "type": "WEB",
      "url": "https://github.com/langflow-ai/langflow/pull/10696"
    },
    {
      "type": "WEB",
      "url": "https://github.com/langflow-ai/langflow/pull/9240"
    },
    {
      "type": "WEB",
      "url": "https://github.com/langflow-ai/langflow/pull/9441"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/langflow-ai/langflow"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/langflow/PYSEC-2025-78.yaml"
    },
    {
      "type": "WEB",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-34291"
    },
    {
      "type": "WEB",
      "url": "https://www.crowdsec.net/vulntracking-report/cve-2025-34291"
    },
    {
      "type": "WEB",
      "url": "https://www.obsidiansecurity.com/blog/cve-2025-34291-critical-account-takeover-and-rce-vulnerability-in-the-langflow-ai-agent-workflow-platform"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/langflow-cors-misconfiguration-to-token-hijack-and-rce"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Langflow CORS misconfiguration enables Account Takeover and RCE"
}