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CVE-2026-3346

Full vulnerability record from the local CVENow database.

Description

IBM Langflow Desktop 1.6.0 through 1.8.4 Lanflow is vulnerable to stored cross-site scripting. This vulnerability allows an authenticated user to embed arbitrary JavaScript code in the Web UI thus altering the intended functionality potentially leading to credentials disclosure within a trusted session.

Severity
MEDIUM
CVSS score
6.4 (v3.1)
Vulnerability status
Analyzed
Source identifier
Published
2026-04-30 21:16:32.610000
Last modified
2026-10-26 21:10:00.170000
View original CVE JSON
{
  "id": "CVE-2026-3346",
  "sourceIdentifier": "[email protected]",
  "published": "2026-04-30T21:16:32.610",
  "lastModified": "2026-10-26T21:10:00.170",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "IBM Langflow Desktop 1.6.0 through 1.8.4 Lanflow is vulnerable to stored cross-site scripting. This vulnerability allows an authenticated user to embed arbitrary JavaScript code in the Web UI thus altering the intended functionality potentially leading to credentials disclosure within a trusted session."
    },
    {
      "lang": "es",
      "value": "IBM Langflow Desktop 1.6.0 hasta 1.8.4 Lanflow es vulnerable a cross-site scripting almacenado. Esta vulnerabilidad permite a un usuario autenticado incrustar código JavaScript arbitrario en la interfaz de usuario web, alterando así la funcionalidad prevista y lo que podría llevar a la divulgación de credenciales dentro de una sesión de confianza."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "IBM",
          "product": "Langflow Desktop",
          "cpes": [
            "cpe:2.3:a:ibm:langflow_desktop:1.6.0:*:*:*:*:*:*:*",
            "cpe:2.3:a:ibm:langflow_desktop:1.8.4:*:*:*:*:*:*:*"
          ],
          "versions": [
            {
              "version": "1.6.0",
              "lessThanOrEqual": "1.8.4",
              "versionType": "semver",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N",
          "baseScore": 6.4,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "CHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 3.1,
        "impactScore": 2.7
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-05-01T16:07:44.411464Z",
          "id": "CVE-2026-3346",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-89"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:langflow:langflow_desktop:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "1.6.0",
              "versionEndIncluding": "1.8.4",
              "matchCriteriaId": "826FDA9F-F22A-49AC-96F1-7EDD14D90261"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://www.ibm.com/support/pages/node/7271095",
      "source": "[email protected]",
      "tags": [
        "Vendor Advisory"
      ]
    }
  ]
}