Search

Find a vulnerability

Search criteria ⓘ Use this form to refine search results.
Full-text search supports keyword queries with ranking and filtering.
You can combine vendor, product, and sources to narrow results.
Enable “Apply ordering” to sort by date instead of relevance.

    6 vulnerabilities found for python-multipart by fastapiexpert

    CVE-2026-40347 (GCVE-0-2026-40347)

    Vulnerability from nvd – Published: 2026-04-17 23:56 – Updated: 2026-04-20 15:46
    VLAI
    Title
    Python-Multipart affected by Denial of Service via large multipart preamble or epilogue data
    Summary
    Python-Multipart is a streaming multipart parser for Python. Versions prior to 0.0.26 have a denial of service vulnerability when parsing crafted `multipart/form-data` requests with large preamble or epilogue sections. Upgrade to version 0.0.26 or later, which skips ahead to the next boundary candidate when processing leading CR/LF data and immediately discards epilogue data after the closing boundary.
    Severity
    5.3 (Medium)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
    SSVC
    Exploitation: none Automatable: yes Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-400 - Uncontrolled Resource Consumption
    • CWE-834 - Excessive Iteration
    Assigner
    References
    Impacted products
    Vendor Product Version
    Kludex python-multipart Affected: < 0.0.26
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

    {
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-40347",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-04-20T15:46:36.258461Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-04-20T15:46:40.011Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "python-multipart",
          "vendor": "Kludex",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 0.0.26"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Python-Multipart is a streaming multipart parser for Python. Versions prior to 0.0.26 have a denial of service vulnerability when parsing crafted `multipart/form-data` requests with large preamble or epilogue sections. Upgrade to version 0.0.26 or later, which skips ahead to the next boundary candidate when processing leading CR/LF data and immediately discards epilogue data after the closing boundary."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "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:L",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-400",
              "description": "CWE-400: Uncontrolled Resource Consumption",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-834",
              "description": "CWE-834: Excessive Iteration",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-17T23:56:50.777Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/Kludex/python-multipart/security/advisories/GHSA-mj87-hwqh-73pj",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/Kludex/python-multipart/security/advisories/GHSA-mj87-hwqh-73pj"
        },
        {
          "name": "https://github.com/Kludex/python-multipart/releases/tag/0.0.26",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/Kludex/python-multipart/releases/tag/0.0.26"
        }
      ],
      "source": {
        "advisory": "GHSA-mj87-hwqh-73pj",
        "discovery": "UNKNOWN"
      },
      "title": "Python-Multipart affected by Denial of Service via large multipart preamble or epilogue data"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-40347",
    "datePublished": "2026-04-17T23:56:50.777Z",
    "dateReserved": "2026-04-10T22:50:01.358Z",
    "dateUpdated": "2026-04-20T15:46:40.011Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

    CVE-2026-24486 (GCVE-0-2026-24486)

    Vulnerability from nvd – Published: 2026-01-27 00:34 – Updated: 2026-01-27 20:51
    VLAI
    Title
    Python-Multipart has Arbitrary File Write via Non-Default Configuration
    Summary
    Python-Multipart is a streaming multipart parser for Python. Prior to version 0.0.22, a Path Traversal vulnerability exists when using non-default configuration options `UPLOAD_DIR` and `UPLOAD_KEEP_FILENAME=True`. An attacker can write uploaded files to arbitrary locations on the filesystem by crafting a malicious filename. Users should upgrade to version 0.0.22 to receive a patch or, as a workaround, avoid using `UPLOAD_KEEP_FILENAME=True` in project configurations.
    Severity
    8.6 (High)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
    Assigner
    References
    Impacted products
    Vendor Product Version
    Kludex python-multipart Affected: < 0.0.22
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

    {
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-24486",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-01-27T20:50:56.753228Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-01-27T20:51:06.407Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "python-multipart",
          "vendor": "Kludex",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 0.0.22"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Python-Multipart is a streaming multipart parser for Python. Prior to version 0.0.22, a Path Traversal vulnerability exists when using non-default configuration options `UPLOAD_DIR` and `UPLOAD_KEEP_FILENAME=True`. An attacker can write uploaded files to arbitrary locations on the filesystem by crafting a malicious filename. Users should upgrade to version 0.0.22 to receive a patch or, as a workaround, avoid using `UPLOAD_KEEP_FILENAME=True` in project configurations."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 8.6,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "LOW",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-22",
              "description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-01-27T00:34:06.229Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/Kludex/python-multipart/security/advisories/GHSA-wp53-j4wj-2cfg",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/Kludex/python-multipart/security/advisories/GHSA-wp53-j4wj-2cfg"
        },
        {
          "name": "https://github.com/Kludex/python-multipart/commit/9433f4bbc9652bdde82bbe380984e32f8cfc89c4",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/Kludex/python-multipart/commit/9433f4bbc9652bdde82bbe380984e32f8cfc89c4"
        },
        {
          "name": "https://github.com/Kludex/python-multipart/releases/tag/0.0.22",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/Kludex/python-multipart/releases/tag/0.0.22"
        }
      ],
      "source": {
        "advisory": "GHSA-wp53-j4wj-2cfg",
        "discovery": "UNKNOWN"
      },
      "title": "Python-Multipart has Arbitrary File Write via Non-Default Configuration"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-24486",
    "datePublished": "2026-01-27T00:34:06.229Z",
    "dateReserved": "2026-01-23T00:38:20.548Z",
    "dateUpdated": "2026-01-27T20:51:06.407Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

    CVE-2024-24762 (GCVE-0-2024-24762)

    Vulnerability from nvd – Published: 2024-02-05 14:33 – Updated: 2025-05-09 16:32
    VLAI
    Title
    python-multipart vulnerable to content-type header Regular expression Denial of Service
    Summary
    `python-multipart` is a streaming multipart parser for Python. When using form data, `python-multipart` uses a Regular Expression to parse the HTTP `Content-Type` header, including options. An attacker could send a custom-made `Content-Type` option that is very difficult for the RegEx to process, consuming CPU resources and stalling indefinitely (minutes or more) while holding the main event loop. This means that process can't handle any more requests, leading to regular expression denial of service. This vulnerability has been patched in version 0.0.7.
    Severity
    7.5 (High)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    SSVC
    Exploitation: poc Automatable: yes Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-400 - Uncontrolled Resource Consumption
    Assigner
    References
    Impacted products
    Vendor Product Version
    Kludex python-multipart Affected: 0 , < 0.0.7 (affected)
    		Create a notification for this product.
    tiangolo fastapi Affected: 0 , < 0.109.1 (affected)
    		Create a notification for this product.
    encode starlette Affected: 0 , < 0.36.2 (affected)
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

    {
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-01T23:28:11.928Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "https://github.com/Kludex/python-multipart/security/advisories/GHSA-2jv5-9r88-3w3p",
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/Kludex/python-multipart/security/advisories/GHSA-2jv5-9r88-3w3p"
          },
          {
            "name": "https://github.com/Kludex/python-multipart/commit/20f0ef6b4e4caf7d69a667c54dff57fe467109a4",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/Kludex/python-multipart/commit/20f0ef6b4e4caf7d69a667c54dff57fe467109a4"
          },
          {
            "name": "https://github.com/tiangolo/fastapi/security/advisories/GHSA-qf9m-vfgh-m389",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/tiangolo/fastapi/security/advisories/GHSA-qf9m-vfgh-m389"
          },
          {
            "name": "https://github.com/encode/starlette/security/advisories/GHSA-93gm-qmq6-w238",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/encode/starlette/security/advisories/GHSA-93gm-qmq6-w238"
          },
          {
            "name": "https://github.com/andrew-d/python-multipart/blob/d3d16dae4b061c34fe9d3c9081d9800c49fc1f7a/multipart/multipart.py#L72-L74",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/andrew-d/python-multipart/blob/d3d16dae4b061c34fe9d3c9081d9800c49fc1f7a/multipart/multipart.py#L72-L74"
          },
          {
            "name": "https://github.com/encode/starlette/commit/13e5c26a27f4903924624736abd6131b2da80cc5",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/encode/starlette/commit/13e5c26a27f4903924624736abd6131b2da80cc5"
          },
          {
            "name": "https://github.com/tiangolo/fastapi/commit/9d34ad0ee8a0dfbbcce06f76c2d5d851085024fc",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/tiangolo/fastapi/commit/9d34ad0ee8a0dfbbcce06f76c2d5d851085024fc"
          },
          {
            "name": "https://github.com/tiangolo/fastapi/releases/tag/0.109.1",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/tiangolo/fastapi/releases/tag/0.109.1"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-24762",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-02-05T16:44:44.760876Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-05-09T16:32:50.015Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://github.com/Kludex/python-multipart",
          "defaultStatus": "unaffected",
          "packageName": "python-multipart",
          "product": "python-multipart",
          "repo": "https://github.com/Kludex/python-multipart",
          "vendor": "Kludex",
          "versions": [
            {
              "lessThan": "0.0.7",
              "status": "affected",
              "version": "0",
              "versionType": "affected"
            }
          ]
        },
        {
          "collectionURL": "https://github.com/tiangolo/fastapi",
          "defaultStatus": "unaffected",
          "packageName": "fastapi",
          "product": "fastapi",
          "repo": "https://github.com/tiangolo/fastapi",
          "vendor": "tiangolo",
          "versions": [
            {
              "lessThan": "0.109.1",
              "status": "affected",
              "version": "0",
              "versionType": "affected"
            }
          ]
        },
        {
          "collectionURL": "https://github.com/encode/starlette",
          "defaultStatus": "unaffected",
          "packageName": "startlette",
          "product": "starlette",
          "repo": "https://github.com/encode/starlette",
          "vendor": "encode",
          "versions": [
            {
              "lessThan": "0.36.2",
              "status": "affected",
              "version": "0",
              "versionType": "affected"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "`python-multipart` is a streaming multipart parser for Python. When using form data, `python-multipart` uses a Regular Expression to parse the HTTP `Content-Type` header, including options. An attacker could send a custom-made `Content-Type` option that is very difficult for the RegEx to process, consuming CPU resources and stalling indefinitely (minutes or more) while holding the main event loop. This means that process can\u0027t handle any more requests, leading to regular expression denial of service. This vulnerability has been patched in version 0.0.7."
            }
          ],
          "value": "`python-multipart` is a streaming multipart parser for Python. When using form data, `python-multipart` uses a Regular Expression to parse the HTTP `Content-Type` header, including options. An attacker could send a custom-made `Content-Type` option that is very difficult for the RegEx to process, consuming CPU resources and stalling indefinitely (minutes or more) while holding the main event loop. This means that process can\u0027t handle any more requests, leading to regular expression denial of service. This vulnerability has been patched in version 0.0.7."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "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"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-400",
              "description": "CWE-400 Uncontrolled Resource Consumption",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-02-17T01:54:29.017Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/Kludex/python-multipart/security/advisories/GHSA-2jv5-9r88-3w3p",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/Kludex/python-multipart/security/advisories/GHSA-2jv5-9r88-3w3p"
        },
        {
          "name": "https://github.com/Kludex/python-multipart/commit/20f0ef6b4e4caf7d69a667c54dff57fe467109a4",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/Kludex/python-multipart/commit/20f0ef6b4e4caf7d69a667c54dff57fe467109a4"
        },
        {
          "name": "https://github.com/tiangolo/fastapi/security/advisories/GHSA-qf9m-vfgh-m389",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/tiangolo/fastapi/security/advisories/GHSA-qf9m-vfgh-m389"
        },
        {
          "name": "https://github.com/encode/starlette/security/advisories/GHSA-93gm-qmq6-w238",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/encode/starlette/security/advisories/GHSA-93gm-qmq6-w238"
        },
        {
          "name": "https://github.com/andrew-d/python-multipart/blob/d3d16dae4b061c34fe9d3c9081d9800c49fc1f7a/multipart/multipart.py#L72-L74",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/andrew-d/python-multipart/blob/d3d16dae4b061c34fe9d3c9081d9800c49fc1f7a/multipart/multipart.py#L72-L74"
        },
        {
          "name": "https://github.com/encode/starlette/commit/13e5c26a27f4903924624736abd6131b2da80cc5",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/encode/starlette/commit/13e5c26a27f4903924624736abd6131b2da80cc5"
        },
        {
          "name": "https://github.com/tiangolo/fastapi/commit/9d34ad0ee8a0dfbbcce06f76c2d5d851085024fc",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/tiangolo/fastapi/commit/9d34ad0ee8a0dfbbcce06f76c2d5d851085024fc"
        },
        {
          "name": "https://github.com/tiangolo/fastapi/releases/tag/0.109.1",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/tiangolo/fastapi/releases/tag/0.109.1"
        }
      ],
      "source": {
        "advisory": "GHSA-2jv5-9r88-3w3p",
        "discovery": "UNKNOWN"
      },
      "title": "python-multipart vulnerable to content-type header Regular expression Denial of Service",
      "x_generator": {
        "engine": "Vulnogram 0.1.0-dev"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2024-24762",
    "datePublished": "2024-02-05T14:33:06.481Z",
    "dateReserved": "2024-01-29T20:51:26.011Z",
    "dateUpdated": "2025-05-09T16:32:50.015Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

    CVE-2026-40347 (GCVE-0-2026-40347)

    Vulnerability from cvelistv5 – Published: 2026-04-17 23:56 – Updated: 2026-04-20 15:46
    VLAI
    Title
    Python-Multipart affected by Denial of Service via large multipart preamble or epilogue data
    Summary
    Python-Multipart is a streaming multipart parser for Python. Versions prior to 0.0.26 have a denial of service vulnerability when parsing crafted `multipart/form-data` requests with large preamble or epilogue sections. Upgrade to version 0.0.26 or later, which skips ahead to the next boundary candidate when processing leading CR/LF data and immediately discards epilogue data after the closing boundary.
    Severity
    5.3 (Medium)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
    SSVC
    Exploitation: none Automatable: yes Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-400 - Uncontrolled Resource Consumption
    • CWE-834 - Excessive Iteration
    Assigner
    References
    Impacted products
    Vendor Product Version
    Kludex python-multipart Affected: < 0.0.26
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

    {
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-40347",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-04-20T15:46:36.258461Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-04-20T15:46:40.011Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "python-multipart",
          "vendor": "Kludex",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 0.0.26"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Python-Multipart is a streaming multipart parser for Python. Versions prior to 0.0.26 have a denial of service vulnerability when parsing crafted `multipart/form-data` requests with large preamble or epilogue sections. Upgrade to version 0.0.26 or later, which skips ahead to the next boundary candidate when processing leading CR/LF data and immediately discards epilogue data after the closing boundary."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "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:L",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-400",
              "description": "CWE-400: Uncontrolled Resource Consumption",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-834",
              "description": "CWE-834: Excessive Iteration",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-17T23:56:50.777Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/Kludex/python-multipart/security/advisories/GHSA-mj87-hwqh-73pj",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/Kludex/python-multipart/security/advisories/GHSA-mj87-hwqh-73pj"
        },
        {
          "name": "https://github.com/Kludex/python-multipart/releases/tag/0.0.26",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/Kludex/python-multipart/releases/tag/0.0.26"
        }
      ],
      "source": {
        "advisory": "GHSA-mj87-hwqh-73pj",
        "discovery": "UNKNOWN"
      },
      "title": "Python-Multipart affected by Denial of Service via large multipart preamble or epilogue data"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-40347",
    "datePublished": "2026-04-17T23:56:50.777Z",
    "dateReserved": "2026-04-10T22:50:01.358Z",
    "dateUpdated": "2026-04-20T15:46:40.011Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

    CVE-2026-24486 (GCVE-0-2026-24486)

    Vulnerability from cvelistv5 – Published: 2026-01-27 00:34 – Updated: 2026-01-27 20:51
    VLAI
    Title
    Python-Multipart has Arbitrary File Write via Non-Default Configuration
    Summary
    Python-Multipart is a streaming multipart parser for Python. Prior to version 0.0.22, a Path Traversal vulnerability exists when using non-default configuration options `UPLOAD_DIR` and `UPLOAD_KEEP_FILENAME=True`. An attacker can write uploaded files to arbitrary locations on the filesystem by crafting a malicious filename. Users should upgrade to version 0.0.22 to receive a patch or, as a workaround, avoid using `UPLOAD_KEEP_FILENAME=True` in project configurations.
    Severity
    8.6 (High)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
    Assigner
    References
    Impacted products
    Vendor Product Version
    Kludex python-multipart Affected: < 0.0.22
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

    {
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-24486",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-01-27T20:50:56.753228Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-01-27T20:51:06.407Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "python-multipart",
          "vendor": "Kludex",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 0.0.22"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Python-Multipart is a streaming multipart parser for Python. Prior to version 0.0.22, a Path Traversal vulnerability exists when using non-default configuration options `UPLOAD_DIR` and `UPLOAD_KEEP_FILENAME=True`. An attacker can write uploaded files to arbitrary locations on the filesystem by crafting a malicious filename. Users should upgrade to version 0.0.22 to receive a patch or, as a workaround, avoid using `UPLOAD_KEEP_FILENAME=True` in project configurations."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 8.6,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "LOW",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-22",
              "description": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-01-27T00:34:06.229Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/Kludex/python-multipart/security/advisories/GHSA-wp53-j4wj-2cfg",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/Kludex/python-multipart/security/advisories/GHSA-wp53-j4wj-2cfg"
        },
        {
          "name": "https://github.com/Kludex/python-multipart/commit/9433f4bbc9652bdde82bbe380984e32f8cfc89c4",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/Kludex/python-multipart/commit/9433f4bbc9652bdde82bbe380984e32f8cfc89c4"
        },
        {
          "name": "https://github.com/Kludex/python-multipart/releases/tag/0.0.22",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/Kludex/python-multipart/releases/tag/0.0.22"
        }
      ],
      "source": {
        "advisory": "GHSA-wp53-j4wj-2cfg",
        "discovery": "UNKNOWN"
      },
      "title": "Python-Multipart has Arbitrary File Write via Non-Default Configuration"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-24486",
    "datePublished": "2026-01-27T00:34:06.229Z",
    "dateReserved": "2026-01-23T00:38:20.548Z",
    "dateUpdated": "2026-01-27T20:51:06.407Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

    CVE-2024-24762 (GCVE-0-2024-24762)

    Vulnerability from cvelistv5 – Published: 2024-02-05 14:33 – Updated: 2025-05-09 16:32
    VLAI
    Title
    python-multipart vulnerable to content-type header Regular expression Denial of Service
    Summary
    `python-multipart` is a streaming multipart parser for Python. When using form data, `python-multipart` uses a Regular Expression to parse the HTTP `Content-Type` header, including options. An attacker could send a custom-made `Content-Type` option that is very difficult for the RegEx to process, consuming CPU resources and stalling indefinitely (minutes or more) while holding the main event loop. This means that process can't handle any more requests, leading to regular expression denial of service. This vulnerability has been patched in version 0.0.7.
    Severity
    7.5 (High)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    SSVC
    Exploitation: poc Automatable: yes Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-400 - Uncontrolled Resource Consumption
    Assigner
    References
    Impacted products
    Vendor Product Version
    Kludex python-multipart Affected: 0 , < 0.0.7 (affected)
    		Create a notification for this product.
    tiangolo fastapi Affected: 0 , < 0.109.1 (affected)
    		Create a notification for this product.
    encode starlette Affected: 0 , < 0.36.2 (affected)
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

    {
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-01T23:28:11.928Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "https://github.com/Kludex/python-multipart/security/advisories/GHSA-2jv5-9r88-3w3p",
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/Kludex/python-multipart/security/advisories/GHSA-2jv5-9r88-3w3p"
          },
          {
            "name": "https://github.com/Kludex/python-multipart/commit/20f0ef6b4e4caf7d69a667c54dff57fe467109a4",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/Kludex/python-multipart/commit/20f0ef6b4e4caf7d69a667c54dff57fe467109a4"
          },
          {
            "name": "https://github.com/tiangolo/fastapi/security/advisories/GHSA-qf9m-vfgh-m389",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/tiangolo/fastapi/security/advisories/GHSA-qf9m-vfgh-m389"
          },
          {
            "name": "https://github.com/encode/starlette/security/advisories/GHSA-93gm-qmq6-w238",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/encode/starlette/security/advisories/GHSA-93gm-qmq6-w238"
          },
          {
            "name": "https://github.com/andrew-d/python-multipart/blob/d3d16dae4b061c34fe9d3c9081d9800c49fc1f7a/multipart/multipart.py#L72-L74",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/andrew-d/python-multipart/blob/d3d16dae4b061c34fe9d3c9081d9800c49fc1f7a/multipart/multipart.py#L72-L74"
          },
          {
            "name": "https://github.com/encode/starlette/commit/13e5c26a27f4903924624736abd6131b2da80cc5",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/encode/starlette/commit/13e5c26a27f4903924624736abd6131b2da80cc5"
          },
          {
            "name": "https://github.com/tiangolo/fastapi/commit/9d34ad0ee8a0dfbbcce06f76c2d5d851085024fc",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/tiangolo/fastapi/commit/9d34ad0ee8a0dfbbcce06f76c2d5d851085024fc"
          },
          {
            "name": "https://github.com/tiangolo/fastapi/releases/tag/0.109.1",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/tiangolo/fastapi/releases/tag/0.109.1"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-24762",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-02-05T16:44:44.760876Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-05-09T16:32:50.015Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://github.com/Kludex/python-multipart",
          "defaultStatus": "unaffected",
          "packageName": "python-multipart",
          "product": "python-multipart",
          "repo": "https://github.com/Kludex/python-multipart",
          "vendor": "Kludex",
          "versions": [
            {
              "lessThan": "0.0.7",
              "status": "affected",
              "version": "0",
              "versionType": "affected"
            }
          ]
        },
        {
          "collectionURL": "https://github.com/tiangolo/fastapi",
          "defaultStatus": "unaffected",
          "packageName": "fastapi",
          "product": "fastapi",
          "repo": "https://github.com/tiangolo/fastapi",
          "vendor": "tiangolo",
          "versions": [
            {
              "lessThan": "0.109.1",
              "status": "affected",
              "version": "0",
              "versionType": "affected"
            }
          ]
        },
        {
          "collectionURL": "https://github.com/encode/starlette",
          "defaultStatus": "unaffected",
          "packageName": "startlette",
          "product": "starlette",
          "repo": "https://github.com/encode/starlette",
          "vendor": "encode",
          "versions": [
            {
              "lessThan": "0.36.2",
              "status": "affected",
              "version": "0",
              "versionType": "affected"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "`python-multipart` is a streaming multipart parser for Python. When using form data, `python-multipart` uses a Regular Expression to parse the HTTP `Content-Type` header, including options. An attacker could send a custom-made `Content-Type` option that is very difficult for the RegEx to process, consuming CPU resources and stalling indefinitely (minutes or more) while holding the main event loop. This means that process can\u0027t handle any more requests, leading to regular expression denial of service. This vulnerability has been patched in version 0.0.7."
            }
          ],
          "value": "`python-multipart` is a streaming multipart parser for Python. When using form data, `python-multipart` uses a Regular Expression to parse the HTTP `Content-Type` header, including options. An attacker could send a custom-made `Content-Type` option that is very difficult for the RegEx to process, consuming CPU resources and stalling indefinitely (minutes or more) while holding the main event loop. This means that process can\u0027t handle any more requests, leading to regular expression denial of service. This vulnerability has been patched in version 0.0.7."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "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"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-400",
              "description": "CWE-400 Uncontrolled Resource Consumption",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-02-17T01:54:29.017Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/Kludex/python-multipart/security/advisories/GHSA-2jv5-9r88-3w3p",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/Kludex/python-multipart/security/advisories/GHSA-2jv5-9r88-3w3p"
        },
        {
          "name": "https://github.com/Kludex/python-multipart/commit/20f0ef6b4e4caf7d69a667c54dff57fe467109a4",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/Kludex/python-multipart/commit/20f0ef6b4e4caf7d69a667c54dff57fe467109a4"
        },
        {
          "name": "https://github.com/tiangolo/fastapi/security/advisories/GHSA-qf9m-vfgh-m389",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/tiangolo/fastapi/security/advisories/GHSA-qf9m-vfgh-m389"
        },
        {
          "name": "https://github.com/encode/starlette/security/advisories/GHSA-93gm-qmq6-w238",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/encode/starlette/security/advisories/GHSA-93gm-qmq6-w238"
        },
        {
          "name": "https://github.com/andrew-d/python-multipart/blob/d3d16dae4b061c34fe9d3c9081d9800c49fc1f7a/multipart/multipart.py#L72-L74",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/andrew-d/python-multipart/blob/d3d16dae4b061c34fe9d3c9081d9800c49fc1f7a/multipart/multipart.py#L72-L74"
        },
        {
          "name": "https://github.com/encode/starlette/commit/13e5c26a27f4903924624736abd6131b2da80cc5",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/encode/starlette/commit/13e5c26a27f4903924624736abd6131b2da80cc5"
        },
        {
          "name": "https://github.com/tiangolo/fastapi/commit/9d34ad0ee8a0dfbbcce06f76c2d5d851085024fc",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/tiangolo/fastapi/commit/9d34ad0ee8a0dfbbcce06f76c2d5d851085024fc"
        },
        {
          "name": "https://github.com/tiangolo/fastapi/releases/tag/0.109.1",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/tiangolo/fastapi/releases/tag/0.109.1"
        }
      ],
      "source": {
        "advisory": "GHSA-2jv5-9r88-3w3p",
        "discovery": "UNKNOWN"
      },
      "title": "python-multipart vulnerable to content-type header Regular expression Denial of Service",
      "x_generator": {
        "engine": "Vulnogram 0.1.0-dev"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2024-24762",
    "datePublished": "2024-02-05T14:33:06.481Z",
    "dateReserved": "2024-01-29T20:51:26.011Z",
    "dateUpdated": "2025-05-09T16:32:50.015Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}