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CVE-2026-9103

Full vulnerability record from the local CVENow database.

Description

IBM Langflow OSS 1.0.0 through 1.10.0 could allow a remote attacker to gain unauthorized access due to improper authentication in the /api/v1/login/auto_login endpoint. The endpoint issues long-lived superuser bearer tokens without requiring authentication when the AUTO_LOGIN configuration is enabled (enabled by default), which may allow an unauthenticated network attacker to obtain full administrative access. Additionally, permissive cross-origin resource sharing (CORS) settings may allow tokens to be exposed to unintended origins, increasing the risk of unauthorized access.

Severity
CRITICAL
CVSS score
9.8 (v3.1)
Vulnerability status
Analyzed
Source identifier
Published
2026-07-17 19:17:19.277000
Last modified
2026-10-24 20:10:00.137000
View original CVE JSON
{
  "id": "CVE-2026-9103",
  "sourceIdentifier": "[email protected]",
  "published": "2026-07-17T19:17:19.277",
  "lastModified": "2026-10-24T20:10:00.137",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "IBM Langflow OSS 1.0.0 through 1.10.0 could allow a remote attacker to gain unauthorized access due to improper authentication in the /api/v1/login/auto_login endpoint. The endpoint issues long-lived superuser bearer tokens without requiring authentication when the AUTO_LOGIN configuration is enabled (enabled by default), which may allow an unauthenticated network attacker to obtain full administrative access. Additionally, permissive cross-origin resource sharing (CORS) settings may allow tokens to be exposed to unintended origins, increasing the risk of unauthorized access."
    },
    {
      "lang": "es",
      "value": "IBM Langflow OSS 1.0.0 hasta 1.10.0 podría permitir a un atacante remoto obtener acceso no autorizado debido a una autenticación incorrecta en el endpoint /api/v1/login/auto_login. El endpoint emite tokens bearer de superusuario de larga duración sin requerir autenticación cuando la configuración AUTO_LOGIN está habilitada (habilitada por defecto), lo que puede permitir a un atacante de red no autenticado obtener acceso administrativo completo. Además, la configuración permisiva de intercambio de recursos de origen cruzado (CORS) puede permitir que los tokens sean expuestos a orígenes no deseados, aumentando el riesgo de acceso no autorizado."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "IBM",
          "product": "Langflow OSS",
          "cpes": [
            "cpe:2.3:a:ibm:langflow_oss:1.0.0:*:*:*:*:*:*:*",
            "cpe:2.3:a:ibm:langflow_oss:1.10.0:*:*:*:*:*:*:*"
          ],
          "versions": [
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              "version": "1.0.0",
              "lessThanOrEqual": "1.10.0",
              "versionType": "semver",
              "status": "affected"
            }
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        }
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    }
  ],
  "metrics": {
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          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
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        "exploitabilityScore": 3.9,
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          "id": "CVE-2026-9103",
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              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
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              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
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  },
  "weaknesses": [
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      "source": "[email protected]",
      "type": "Secondary",
      "description": [
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  "references": [
    {
      "url": "https://www.ibm.com/support/pages/node/7278926",
      "source": "[email protected]",
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        "Vendor Advisory"
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}