FKIE_CVE-2026-33344

Vulnerability from fkie_nvd - Published: 2026-03-24 20:16 - Updated: 2026-03-26 13:03
Severity ?
8.1 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Summary
Dagu is a workflow engine with a built-in Web user interface. From version 2.0.0 to before version 2.3.1, the fix for CVE-2026-27598 added ValidateDAGName to CreateNewDAG and rewrote generateFilePath to use filepath.Base. This patched the CREATE path. The remaining API endpoints - GET, DELETE, RENAME, EXECUTE - all pass the {fileName} URL path parameter to locateDAG without calling ValidateDAGName. %2F-encoded forward slashes in the {fileName} segment traverse outside the DAGs directory. This issue has been patched in version 2.3.1.
References
security-advisories@github.comhttps://github.com/dagu-org/dagu/commit/7d07fda8f9de3ae73dfb081ccd0639f8059c56bbPatch
security-advisories@github.comhttps://github.com/dagu-org/dagu/security/advisories/GHSA-ph8x-4jfv-v9v8Exploit, Mitigation, Vendor Advisory
Impacted products
Vendor Product Version
dagu dagu *
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{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:dagu:dagu:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "CA816FA1-28C8-423D-9509-4299AA991660",
              "versionEndExcluding": "2.3.1",
              "versionStartIncluding": "2.0.0",
              "vulnerable": true
            }
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          "negate": false,
          "operator": "OR"
        }
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Dagu is a workflow engine with a built-in Web user interface. From version 2.0.0 to before version 2.3.1, the fix for CVE-2026-27598 added ValidateDAGName to CreateNewDAG and rewrote generateFilePath to use filepath.Base. This patched the CREATE path. The remaining API endpoints - GET, DELETE, RENAME, EXECUTE - all pass the {fileName} URL path parameter to locateDAG without calling ValidateDAGName. %2F-encoded forward slashes in the {fileName} segment traverse outside the DAGs directory. This issue has been patched in version 2.3.1."
    },
    {
      "lang": "es",
      "value": "Dagu es un motor de flujo de trabajo con una interfaz de usuario web integrada. Desde la versi\u00f3n 2.0.0 hasta antes de la versi\u00f3n 2.3.1, la correcci\u00f3n para CVE-2026-27598 a\u00f1adi\u00f3 ValidateDAGName a CreateNewDAG y reescribi\u00f3 generateFilePath para usar filepath.Base. Esto parche\u00f3 la ruta CREATE. Los puntos finales de la API restantes - GET, DELETE, RENAME, EXECUTE - todos pasan el par\u00e1metro de ruta URL {fileName} a locateDAG sin llamar a ValidateDAGName. Barras diagonales codificadas con %2F en el segmento {fileName} atraviesan fuera del directorio DAGs. Este problema ha sido parcheado en la versi\u00f3n 2.3.1."
    }
  ],
  "id": "CVE-2026-33344",
  "lastModified": "2026-03-26T13:03:13.500",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 8.1,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.2,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
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  },
  "published": "2026-03-24T20:16:28.910",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/dagu-org/dagu/commit/7d07fda8f9de3ae73dfb081ccd0639f8059c56bb"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Exploit",
        "Mitigation",
        "Vendor Advisory"
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      "url": "https://github.com/dagu-org/dagu/security/advisories/GHSA-ph8x-4jfv-v9v8"
    }
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  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Primary"
    }
  ]
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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