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CVE-2026-102943

Full vulnerability record from the local CVENow database.

Description

Dagu is a workflow engine with a built-in Web user interface. Prior to version 2.11.0, its MCP  dagu_read  operation with target  dag_spec  invokes the DAG specification API directly, bypassing the HTTP middleware introduced for CVE-2026-33344. The underlying resolver does not restrict resolved paths to configured DAG directories. An authenticated attacker with a viewer-role API key can supply an absolute or traversing path to read  .yaml  or  .yml  files outside those directories that are accessible to the Dagu process. The affected operation does not provide write or execution capability. This issue is fixed in version 2.11.0.

Severity
MEDIUM
CVSS score
6.5 (v3.1)
Vulnerability status
Received
Source identifier
Published
2026-11-05 23:16:49.180000
Last modified
2026-11-05 23:16:49.180000
View original CVE JSON
{
  "id": "CVE-2026-102943",
  "sourceIdentifier": "[email protected]",
  "published": "2026-11-05T23:16:49.180",
  "lastModified": "2026-11-05T23:16:49.180",
  "vulnStatus": "Received",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Dagu is a workflow engine with a built-in Web user interface. Prior to version 2.11.0, its MCP  dagu_read  operation with target  dag_spec  invokes the DAG specification API directly, bypassing the HTTP middleware introduced for CVE-2026-33344. The underlying resolver does not restrict resolved paths to configured DAG directories. An authenticated attacker with a viewer-role API key can supply an absolute or traversing path to read  .yaml  or  .yml  files outside those directories that are accessible to the Dagu process. The affected operation does not provide write or execution capability. This issue is fixed in version 2.11.0."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "dagucloud",
          "product": "dagu",
          "versions": [
            {
              "version": "< 2.11.0",
              "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:U/C:H/I:N/A:N",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        },
        {
          "lang": "en",
          "value": "CWE-863"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/dagucloud/dagu/commit/c15c5406bb7b9551f94ab276705f9fd1cebbf2d2",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/dagucloud/dagu/pull/2424",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/dagucloud/dagu/releases/tag/v2.11.0",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/dagucloud/dagu/security/advisories/GHSA-5m6c-38r8-5w76",
      "source": "[email protected]"
    }
  ]
}