Vulnerability-Lookup

CVE-2025-11849 (GCVE-0-2025-11849)

Vulnerability from cvelistv5 – Published: 2025-10-17 05:00 – Updated: 2025-10-17 14:24

Summary

Versions of the package mammoth from 0.3.25 and before 1.11.0; versions of the package mammoth from 0.3.25 and before 1.11.0; versions of the package mammoth before 1.11.0; versions of the package org.zwobble.mammoth:mammoth before 1.11.0 are vulnerable to Directory Traversal due to the lack of path or file type validation when processing a docx file containing an image with an external link (r:link attribute instead of embedded r:embed). The library resolves the URI to a file path and after reading, the content is encoded as base64 and included in the HTML output as a data URI. An attacker can read arbitrary files on the system where the conversion is performed or cause an excessive resources consumption by crafting a docx file that links to special device files such as /dev/random or /dev/zero.

Severity

9.3 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:H/E:P

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-10-17 14:24 UTC

CWE

CWE-22 - Directory Traversal
CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Assigner

snyk CNA under the mitre root

CNA scorecard C 60/100 over 15 records in the last 180 days details

References

6 references

URL	Tags
https://security.snyk.io/vuln/SNYK-JS-MAMMOTH-13554470
https://security.snyk.io/vuln/SNYK-PYTHON-MAMMOTH…
https://security.snyk.io/vuln/SNYK-DOTNET-MAMMOTH…
https://security.snyk.io/vuln/SNYK-JAVA-ORGZWOBBL…
https://gist.github.com/AudunWA/4d690d9ae5efdafe7…
https://github.com/mwilliamson/mammoth.js/commit/…

Impacted products

3 products

Vendor	Product	Version
n/a	mammoth	Affected: 0.3.25 , < 1.11.0 (semver)
n/a	Mammoth	Affected: 0 , < 1.11.0 (semver)
n/a	org.zwobble.mammoth:mammoth	Affected: 0 , < 1.11.0 (semver)

Credits

Audun Wigum Arbo

Show details on NVD website

JSON

To clipboard

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            },
            {
              "url": "https://security.snyk.io/vuln/SNYK-DOTNET-MAMMOTH-13561968"
            },
            {
              "url": "https://security.snyk.io/vuln/SNYK-JAVA-ORGZWOBBLEMAMMOTH-13561969"
            },
            {
              "url": "https://gist.github.com/AudunWA/4d690d9ae5efdafe7cf71d9c2ee90a10"
            },
            {
              "url": "https://github.com/mwilliamson/mammoth.js/commit/c54aaeb43a7941317c1f3c119ffa92090f988820"
            }
          ]
        }
      },
      "cveMetadata": {
        "assignerOrgId": "bae035ff-b466-4ff4-94d0-fc9efd9e1730",
        "assignerShortName": "snyk",
        "cveId": "CVE-2025-11849",
        "datePublished": "2025-10-17T05:00:06.278Z",
        "dateReserved": "2025-10-16T09:34:45.608Z",
        "dateUpdated": "2025-10-17T14:24:39.437Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}

FKIE_CVE-2025-11849

Vulnerability from fkie_nvd - Published: 2025-10-17 05:15 - Updated: 2026-10-19 16:10

Severity

9.3 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:H

Summary

References

	URL	Tags
	report@snyk.io	https://gist.github.com/AudunWA/4d690d9ae5efdafe7cf71d9c2ee90a10
	report@snyk.io	https://github.com/mwilliamson/mammoth.js/commit/c54aaeb43a7941317c1f3c119ffa92090f988820
	report@snyk.io	https://security.snyk.io/vuln/SNYK-DOTNET-MAMMOTH-13561968
	report@snyk.io	https://security.snyk.io/vuln/SNYK-JAVA-ORGZWOBBLEMAMMOTH-13561969
	report@snyk.io	https://security.snyk.io/vuln/SNYK-JS-MAMMOTH-13554470
	report@snyk.io	https://security.snyk.io/vuln/SNYK-PYTHON-MAMMOTH-13561967
	134c704f-9b21-4f2e-91b3-4a467353bcc0	https://gist.github.com/AudunWA/4d690d9ae5efdafe7cf71d9c2ee90a10

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "mammoth",
          "vendor": "n/a",
          "versions": [
            {
              "lessThan": "1.11.0",
              "status": "affected",
              "version": "0.3.25",
              "versionType": "semver"
            }
          ]
        },
        {
          "product": "mammoth",
          "vendor": "n/a",
          "versions": [
            {
              "lessThan": "1.11.0",
              "status": "affected",
              "version": "0.3.25",
              "versionType": "semver"
            }
          ]
        },
        {
          "product": "Mammoth",
          "vendor": "n/a",
          "versions": [
            {
              "lessThan": "1.11.0",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        },
        {
          "product": "org.zwobble.mammoth:mammoth",
          "vendor": "n/a",
          "versions": [
            {
              "lessThan": "1.11.0",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "report@snyk.io"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Versions of the package mammoth from 0.3.25 and before 1.11.0; versions of the package mammoth from 0.3.25 and before 1.11.0; versions of the package mammoth before 1.11.0; versions of the package org.zwobble.mammoth:mammoth before 1.11.0 are vulnerable to Directory Traversal due to the lack of path or file type validation when processing a docx file containing an image with an external link (r:link attribute instead of embedded r:embed). The library resolves the URI to a file path and after reading, the content is encoded as base64 and included in the HTML output as a data URI. An attacker can read arbitrary files on the system where the conversion is performed or cause an excessive resources consumption by crafting a docx file that links to special device files such as /dev/random or /dev/zero."
    },
    {
      "lang": "es",
      "value": "Versiones del paquete mammoth desde 0.3.25 y anteriores a 1.11.0; versiones del paquete mammoth desde 0.3.25 y anteriores a 1.11.0; versiones del paquete mammoth anteriores a 1.11.0; versiones del paquete org.zwobble.mammoth:mammoth anteriores a 1.11.0 son vulnerables a salto de directorio debido a la falta de validaci\u00f3n de ruta o tipo de archivo al procesar un archivo docx que contiene una imagen con un enlace externo (atributo r:link en lugar de r:embed incrustado). La biblioteca resuelve la URI a una ruta de archivo y despu\u00e9s de la lectura, el contenido se codifica como base64 y se incluye en la salida HTML como una URI de datos. Un atacante puede leer archivos arbitrarios en el sistema donde se realiza la conversi\u00f3n o causar un consumo excesivo de recursos al crear un archivo docx que enlaza a archivos de dispositivo especiales como /dev/random o /dev/zero."
    }
  ],
  "id": "CVE-2025-11849",
  "lastModified": "2026-10-19T16:10:00.260",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.3,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.8,
        "source": "report@snyk.io",
        "type": "Secondary"
      }
    ],
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 5.4,
          "baseSeverity": "MEDIUM",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "PROOF_OF_CONCEPT",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "NONE",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "HIGH",
          "subConfidentialityImpact": "HIGH",
          "subIntegrityImpact": "NONE",
          "userInteraction": "PASSIVE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:H/SI:N/SA:H/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "version": "4.0",
          "vulnAvailabilityImpact": "NONE",
          "vulnConfidentialityImpact": "NONE",
          "vulnIntegrityImpact": "NONE",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "report@snyk.io",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-11849",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-10-17T14:24:36.088431Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2025-10-17T05:15:33.960",
  "references": [
    {
      "source": "report@snyk.io",
      "url": "https://gist.github.com/AudunWA/4d690d9ae5efdafe7cf71d9c2ee90a10"
    },
    {
      "source": "report@snyk.io",
      "url": "https://github.com/mwilliamson/mammoth.js/commit/c54aaeb43a7941317c1f3c119ffa92090f988820"
    },
    {
      "source": "report@snyk.io",
      "url": "https://security.snyk.io/vuln/SNYK-DOTNET-MAMMOTH-13561968"
    },
    {
      "source": "report@snyk.io",
      "url": "https://security.snyk.io/vuln/SNYK-JAVA-ORGZWOBBLEMAMMOTH-13561969"
    },
    {
      "source": "report@snyk.io",
      "url": "https://security.snyk.io/vuln/SNYK-JS-MAMMOTH-13554470"
    },
    {
      "source": "report@snyk.io",
      "url": "https://security.snyk.io/vuln/SNYK-PYTHON-MAMMOTH-13561967"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://gist.github.com/AudunWA/4d690d9ae5efdafe7cf71d9c2ee90a10"
    }
  ],
  "sourceIdentifier": "report@snyk.io",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        }
      ],
      "source": "report@snyk.io",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}

GHSA-RMJR-87WV-GF87

Vulnerability from github – Published: 2025-10-17 06:31 – Updated: 2025-10-17 17:50

Summary

Mammoth is vulnerable to Directory Traversal

Details

Severity

9.3 (Critical)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:H

5.4 (Medium)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:H/SI:N/SA:H/E:P

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "mammoth"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.3.25"
            },
            {
              "fixed": "1.11.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "org.zwobble.mammoth:mammoth"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.11.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "mammoth"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.3.25"
            },
            {
              "fixed": "1.11.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "NuGet",
        "name": "Mammoth"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.11.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-11849"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-22"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-10-17T17:50:00Z",
    "nvd_published_at": "2025-10-17T05:15:33Z",
    "severity": "MODERATE"
  },
  "details": "Versions of the package mammoth from 0.3.25 and before 1.11.0; versions of the package mammoth from 0.3.25 and before 1.11.0; versions of the package mammoth before 1.11.0; versions of the package org.zwobble.mammoth:mammoth before 1.11.0 are vulnerable to Directory Traversal due to the lack of path or file type validation when processing a docx file containing an image with an external link (r:link attribute instead of embedded r:embed). The library resolves the URI to a file path and after reading, the content is encoded as base64 and included in the HTML output as a data URI. An attacker can read arbitrary files on the system where the conversion is performed or cause an excessive resources consumption by crafting a docx file that links to special device files such as /dev/random or /dev/zero.",
  "id": "GHSA-rmjr-87wv-gf87",
  "modified": "2025-10-17T17:50:00Z",
  "published": "2025-10-17T06:31:11Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-11849"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mwilliamson/mammoth.js/commit/c54aaeb43a7941317c1f3c119ffa92090f988820"
    },
    {
      "type": "WEB",
      "url": "https://gist.github.com/AudunWA/4d690d9ae5efdafe7cf71d9c2ee90a10"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/mwilliamson/java-mammoth"
    },
    {
      "type": "WEB",
      "url": "https://security.snyk.io/vuln/SNYK-DOTNET-MAMMOTH-13561968"
    },
    {
      "type": "WEB",
      "url": "https://security.snyk.io/vuln/SNYK-JAVA-ORGZWOBBLEMAMMOTH-13561969"
    },
    {
      "type": "WEB",
      "url": "https://security.snyk.io/vuln/SNYK-JS-MAMMOTH-13554470"
    },
    {
      "type": "WEB",
      "url": "https://security.snyk.io/vuln/SNYK-PYTHON-MAMMOTH-13561967"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:H/SI:N/SA:H/E:P",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Mammoth is vulnerable to Directory Traversal"
}

PYSEC-2026-1603

Vulnerability from pysec - Published: 2026-07-07 16:03 - Updated: 2026-07-07 17:24

Details

Severity

9.3 (Critical)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:H

5.4 (Medium)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:H/SI:N/SA:H/E:P

Impacted products

Name	purl
mammoth	pkg:pypi/mammoth

Aliases

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "mammoth",
        "purl": "pkg:pypi/mammoth"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.3.25"
            },
            {
              "fixed": "1.11.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.3.25",
        "0.3.26",
        "0.3.27",
        "0.3.29",
        "0.3.30",
        "0.3.31",
        "1.0.0",
        "1.0.1",
        "1.0.2",
        "1.0.3",
        "1.0.4",
        "1.1.0",
        "1.1.1",
        "1.10.0",
        "1.2.0",
        "1.2.1",
        "1.2.2",
        "1.3.0",
        "1.3.1",
        "1.3.2",
        "1.3.3",
        "1.3.4",
        "1.3.5",
        "1.4.0",
        "1.4.1",
        "1.4.10",
        "1.4.11",
        "1.4.12",
        "1.4.13",
        "1.4.14",
        "1.4.15",
        "1.4.16",
        "1.4.17",
        "1.4.18",
        "1.4.19",
        "1.4.2",
        "1.4.3",
        "1.4.4",
        "1.4.5",
        "1.4.6",
        "1.4.7",
        "1.4.8",
        "1.4.9",
        "1.5.0",
        "1.5.1",
        "1.6.0",
        "1.7.0",
        "1.7.1",
        "1.8.0",
        "1.9.0",
        "1.9.1"
      ]
    }
  ],
  "aliases": [
    "CVE-2025-11849",
    "GHSA-rmjr-87wv-gf87"
  ],
  "details": "Versions of the package mammoth from 0.3.25 and before 1.11.0; versions of the package mammoth from 0.3.25 and before 1.11.0; versions of the package mammoth before 1.11.0; versions of the package org.zwobble.mammoth:mammoth before 1.11.0 are vulnerable to Directory Traversal due to the lack of path or file type validation when processing a docx file containing an image with an external link (r:link attribute instead of embedded r:embed). The library resolves the URI to a file path and after reading, the content is encoded as base64 and included in the HTML output as a data URI. An attacker can read arbitrary files on the system where the conversion is performed or cause an excessive resources consumption by crafting a docx file that links to special device files such as /dev/random or /dev/zero.",
  "id": "PYSEC-2026-1603",
  "modified": "2026-07-07T17:24:37.784229Z",
  "published": "2026-07-07T16:03:07.843563Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-11849"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mwilliamson/mammoth.js/commit/c54aaeb43a7941317c1f3c119ffa92090f988820"
    },
    {
      "type": "WEB",
      "url": "https://gist.github.com/AudunWA/4d690d9ae5efdafe7cf71d9c2ee90a10"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/mwilliamson/java-mammoth"
    },
    {
      "type": "WEB",
      "url": "https://security.snyk.io/vuln/SNYK-DOTNET-MAMMOTH-13561968"
    },
    {
      "type": "WEB",
      "url": "https://security.snyk.io/vuln/SNYK-JAVA-ORGZWOBBLEMAMMOTH-13561969"
    },
    {
      "type": "WEB",
      "url": "https://security.snyk.io/vuln/SNYK-JS-MAMMOTH-13554470"
    },
    {
      "type": "WEB",
      "url": "https://security.snyk.io/vuln/SNYK-PYTHON-MAMMOTH-13561967"
    },
    {
      "type": "PACKAGE",
      "url": "https://pypi.org/project/mammoth"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-rmjr-87wv-gf87"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:H/SI:N/SA:H/E:P",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Mammoth is vulnerable to Directory Traversal"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
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.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

Publication & reservation Sightings KEV catalogs Other timestamps

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2025-11849 (GCVE-0-2025-11849)

FKIE_CVE-2025-11849

GHSA-RMJR-87WV-GF87

PYSEC-2026-1603

Tags

Sightings

Nomenclature

Vulnerability timeline

Related by attack behaviour