FKIE_CVE-2026-38361

Vulnerability from fkie_nvd - Published: 2026-05-08 15:16 - Updated: 2026-06-17 10:41
Severity
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
Multiple unauthenticated denial-of-service (DoS) issues in fohrloop dash-uploader v0.1.0 through v0.7.0a2. The chunked-upload handler (dash_uploader/httprequesthandler.py, dash_uploader/upload.py) trusts unsanitized, attacker-controlled upload parameters (e.g. flowTotalChunks) and does not enforce the documented max_file_size limit, allowing a remote, unauthenticated attacker to cause an out-of-memory (OOM) process crash (unbounded range(1, flowTotalChunks + 1) allocation), truncation of the target file to zero bytes (flowTotalChunks=0, where the all([]) == True quirk runs the file-assembly branch on zero chunks), permanent disk exhaustion (never-cleaned-up temporary directories per flowIdentifier), and a complete bypass of the documented max_file_size limit.
References
cve@mitre.orghttps://docs.python.org/3/library/functions.html#allProduct
cve@mitre.orghttps://github.com/a1ohadance/CVE-2026-38361Exploit, Third Party Advisory
cve@mitre.orghttps://github.com/advisories/GHSA-xp7f-v245-w3w8
cve@mitre.orghttps://github.com/fohrloop/dash-uploaderProduct
cve@mitre.orghttps://github.com/fohrloop/dash-uploader/blob/stable/dash_uploader/httprequesthandler.pyProduct
cve@mitre.orghttps://github.com/fohrloop/dash-uploader/issues/153Product
cve@mitre.orghttps://github.com/github/advisory-database/pull/7636
cve@mitre.orghttps://libraries.io/pypi/dash-uploaderProduct
cve@mitre.orghttps://pepy.tech/project/dash-uploaderProduct
cve@mitre.orghttps://pypi.org/project/dash-uploader/Product
cve@mitre.orghttps://pypistats.org/packages/dash-uploaderProduct
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/a1ohadance/CVE-2026-38361Exploit, Third Party Advisory
Impacted products
Vendor Product Version
fohrloop dash-uploader *
fohrloop dash-uploader 0.7.0
fohrloop dash-uploader 0.7.0
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:fohrloop:dash-uploader:*:*:*:*:*:python:*:*",
              "matchCriteriaId": "FC5E3E08-93AE-4EB0-9A5E-3060255C03AD",
              "versionEndIncluding": "0.6.1",
              "versionStartIncluding": "0.1.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:fohrloop:dash-uploader:0.7.0:alpha1:*:*:*:python:*:*",
              "matchCriteriaId": "6A3BBED7-5E23-4718-9015-21108A1120E5",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:fohrloop:dash-uploader:0.7.0:alpha2:*:*:*:python:*:*",
              "matchCriteriaId": "1FDC2B1C-41BC-4ADF-BD07-A0207D1A784A",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Multiple unauthenticated denial-of-service (DoS) issues in fohrloop dash-uploader v0.1.0 through v0.7.0a2. The chunked-upload handler (dash_uploader/httprequesthandler.py, dash_uploader/upload.py) trusts unsanitized, attacker-controlled upload parameters (e.g. flowTotalChunks) and does not enforce the documented max_file_size limit, allowing a remote, unauthenticated attacker to cause an out-of-memory (OOM) process crash (unbounded range(1, flowTotalChunks + 1) allocation), truncation of the target file to zero bytes (flowTotalChunks=0, where the all([]) == True quirk runs the file-assembly branch on zero chunks), permanent disk exhaustion (never-cleaned-up temporary directories per flowIdentifier), and a complete bypass of the documented max_file_size limit."
    }
  ],
  "id": "CVE-2026-38361",
  "lastModified": "2026-06-17T10:41:41.240",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-38361",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-05-08T18:26:42.915846Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-05-08T15:16:37.120",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Product"
      ],
      "url": "https://docs.python.org/3/library/functions.html#all"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://github.com/a1ohadance/CVE-2026-38361"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://github.com/advisories/GHSA-xp7f-v245-w3w8"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Product"
      ],
      "url": "https://github.com/fohrloop/dash-uploader"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Product"
      ],
      "url": "https://github.com/fohrloop/dash-uploader/blob/stable/dash_uploader/httprequesthandler.py"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Product"
      ],
      "url": "https://github.com/fohrloop/dash-uploader/issues/153"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://github.com/github/advisory-database/pull/7636"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Product"
      ],
      "url": "https://libraries.io/pypi/dash-uploader"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Product"
      ],
      "url": "https://pepy.tech/project/dash-uploader"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Product"
      ],
      "url": "https://pypi.org/project/dash-uploader/"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Product"
      ],
      "url": "https://pypistats.org/packages/dash-uploader"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://github.com/a1ohadance/CVE-2026-38361"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-400"
        },
        {
          "lang": "en",
          "value": "CWE-670"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}


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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
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