CVE-2026-31882

{
  "id": "CVE-2026-31882",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
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        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-31882",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-03-13T19:43:49.630099Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security-advisories@github.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "security-advisories@github.com",
      "affectedData": [
        {
          "vendor": "dagu-org",
          "product": "dagu",
          "versions": [
            {
              "status": "affected",
              "version": "< 2.2.4"
            }
          ]
        }
      ]
    }
  ],
  "published": "2026-03-13T19:54:37.000",
  "references": [
    {
      "url": "https://github.com/dagu-org/dagu/commit/064616c9b80c04824c1c7c357308f77f3f24d775",
      "tags": [
        "Patch"
      ],
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/dagu-org/dagu/pull/1752",
      "tags": [
        "Issue Tracking",
        "Patch"
      ],
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/dagu-org/dagu/releases/tag/v2.2.4",
      "tags": [
        "Product",
        "Release Notes"
      ],
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/dagu-org/dagu/security/advisories/GHSA-9wmw-9wph-2vwp",
      "tags": [
        "Exploit",
        "Mitigation",
        "Vendor Advisory"
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      "source": "security-advisories@github.com"
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  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-306"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Dagu is a workflow engine with a built-in Web user interface. Prior to 2.2.4, when Dagu is configured with HTTP Basic authentication (DAGU_AUTH_MODE=basic), all Server-Sent Events (SSE) endpoints are accessible without any credentials. This allows unauthenticated attackers to access real-time DAG execution data, workflow configurations, execution logs, and queue status — bypassing the authentication that protects the REST API. The buildStreamAuthOptions() function builds authentication options for SSE/streaming endpoints. When the auth mode is basic, it returns an auth.Options struct with BasicAuthEnabled: true but AuthRequired defaults to false (Go zero value). The authentication middleware at internal/service/frontend/auth/middleware.go allows unauthenticated requests when AuthRequired is false. This vulnerability is fixed in 2.2.4."
    },
    {
      "lang": "es",
      "value": "Dagu es un motor de flujo de trabajo con una interfaz de usuario web integrada. Antes de la versión 2.2.4, cuando Dagu está configurado con autenticación HTTP básica (DAGU_AUTH_MODE=basic), todos los puntos finales de Server-Sent Events (SSE) son accesibles sin ninguna credencial. Esto permite a atacantes no autenticados acceder a datos de ejecución de DAG en tiempo real, configuraciones de flujo de trabajo, registros de ejecución y estado de la cola — eludiendo la autenticación que protege la API REST. La función buildStreamAuthOptions() construye opciones de autenticación para puntos finales SSE/streaming. Cuando el modo de autenticación es básico, devuelve una estructura auth.Options con BasicAuthEnabled: true pero AuthRequired por defecto es false (valor cero de Go). El middleware de autenticación en internal/service/frontend/auth/middleware.go permite solicitudes no autenticadas cuando AuthRequired es false. Esta vulnerabilidad se corrige en la versión 2.2.4."
    }
  ],
  "lastModified": "2026-06-17T10:34:41.403",
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          "negate": false,
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              "criteria": "cpe:2.3:a:dagu:dagu:*:*:*:*:*:*:*:*",
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              "versionEndExcluding": "2.2.4"
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  "sourceIdentifier": "security-advisories@github.com"
}