Vulnerability-Lookup

PYSEC-2026-2144

Vulnerability from pysec - Published: 2026-06-26 16:16 - Updated: 2026-07-13 05:48

Details

Docling simplifies document processing by parsing diverse formats and providing integrations with the generative AI ecosystem. From 2.45.0 until 2.91.0, the METS-GBS backend's XML parsing and the input document format detection lacked security controls. An attacker could craft malicious METS-GBS archives that, when processed, could read sensitive files, exhaust system resources, or cause application crashes. This vulnerability is fixed in 2.91.0.

Severity

7.1 (High)


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

Impacted products

Name	purl
docling	pkg:pypi/docling

Aliases

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {},
      "package": {
        "ecosystem": "PyPI",
        "name": "docling",
        "purl": "pkg:pypi/docling"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.45.0"
            },
            {
              "fixed": "2.91.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.45.0",
        "2.46.0",
        "2.47.0",
        "2.47.1",
        "2.48.0",
        "2.49.0",
        "2.50.0",
        "2.51.0",
        "2.52.0",
        "2.53.0",
        "2.54.0",
        "2.55.0",
        "2.55.1",
        "2.56.0",
        "2.56.1",
        "2.57.0",
        "2.58.0",
        "2.59.0",
        "2.60.0",
        "2.60.1",
        "2.61.0",
        "2.61.1",
        "2.61.2",
        "2.62.0",
        "2.63.0",
        "2.64.0",
        "2.64.1",
        "2.65.0",
        "2.66.0",
        "2.67.0",
        "2.68.0",
        "2.69.0",
        "2.69.1",
        "2.70.0",
        "2.71.0",
        "2.72.0",
        "2.73.0",
        "2.73.1",
        "2.74.0",
        "2.75.0",
        "2.76.0",
        "2.77.0",
        "2.78.0",
        "2.79.0",
        "2.80.0",
        "2.81.0",
        "2.82.0",
        "2.83.0",
        "2.84.0",
        "2.85.0",
        "2.86.0",
        "2.87.0",
        "2.88.0",
        "2.89.0",
        "2.90.0"
      ]
    }
  ],
  "aliases": [
    "CVE-2026-44018",
    "GHSA-r3xg-rg9j-67fv"
  ],
  "details": "Docling simplifies document processing by parsing diverse formats and providing integrations with the generative AI ecosystem. From 2.45.0 until 2.91.0, the METS-GBS backend\u0027s XML parsing and the input document format detection lacked security controls. An attacker could craft malicious METS-GBS archives that, when processed, could read sensitive files, exhaust system resources, or cause application crashes. This vulnerability is fixed in 2.91.0.",
  "id": "PYSEC-2026-2144",
  "modified": "2026-07-13T05:48:35.499256Z",
  "published": "2026-06-26T16:16:30.767Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/docling-project/docling/releases/tag/v2.91.0"
    },
    {
      "type": "FIX",
      "url": "https://github.com/docling-project/docling/security/advisories/GHSA-r3xg-rg9j-67fv"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-44018 (GCVE-0-2026-44018)

Vulnerability from cvelistv5 – Published: 2026-06-26 15:40 – Updated: 2026-06-26 19:13

Title

Docling: Unsafe Archive Extraction and XML Parsing in METS-GBS Backend

Summary

Severity

5.5 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-06-26 19:10 UTC

CWE

CWE-409 - Improper Handling of Highly Compressed Data (Data Amplification)
CWE-611 - Improper Restriction of XML External Entity Reference
CWE-776 - Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')

Assigner

GitHub_M mitre root

References

2 references

URL	Tags
https://github.com/docling-project/docling/securi…	x_refsource_CONFIRM
https://github.com/docling-project/docling/releas…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
docling-project	docling	Affected: >= 2.45.0, < 2.91.0

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-44018",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-06-26T19:10:31.944583Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-06-26T19:13:39.619Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "docling",
          "vendor": "docling-project",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 2.45.0, \u003c 2.91.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Docling simplifies document processing by parsing diverse formats and providing integrations with the generative AI ecosystem. From 2.45.0 until 2.91.0, the METS-GBS backend\u0027s XML parsing and the input document format detection lacked security controls. An attacker could craft malicious METS-GBS archives that, when processed, could read sensitive files, exhaust system resources, or cause application crashes. This vulnerability is fixed in 2.91.0."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 5.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-409",
              "description": "CWE-409: Improper Handling of Highly Compressed Data (Data Amplification)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-611",
              "description": "CWE-611: Improper Restriction of XML External Entity Reference",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-776",
              "description": "CWE-776: Improper Restriction of Recursive Entity References in DTDs (\u0027XML Entity Expansion\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-26T15:40:42.422Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/docling-project/docling/security/advisories/GHSA-r3xg-rg9j-67fv",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/docling-project/docling/security/advisories/GHSA-r3xg-rg9j-67fv"
        },
        {
          "name": "https://github.com/docling-project/docling/releases/tag/v2.91.0",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/docling-project/docling/releases/tag/v2.91.0"
        }
      ],
      "source": {
        "advisory": "GHSA-r3xg-rg9j-67fv",
        "discovery": "UNKNOWN"
      },
      "title": "Docling: Unsafe Archive Extraction and XML Parsing in METS-GBS Backend"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-44018",
    "datePublished": "2026-06-26T15:40:42.422Z",
    "dateReserved": "2026-05-04T21:24:36.506Z",
    "dateUpdated": "2026-06-26T19:13:39.619Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

GHSA-R3XG-RG9J-67FV

Vulnerability from github – Published: 2026-06-03 21:13 – Updated: 2026-07-21 15:04

Summary

Docling: Unsafe Archive Extraction and XML Parsing in METS-GBS Backend

Details

Impact

The METS-GBS backend's XML parsing and the input document format detection lacked security controls, enabling: - XML External Entity (XXE) attacks to read local files or cause denial of service - Decompression bombs (zip bombs) to exhaust memory and disk space - Unbounded archive extraction consuming system resources

An attacker could craft malicious METS-GBS archives that, when processed, could read sensitive files, exhaust system resources, or cause application crashes.

Patches

Fixed in version 2.91.0. The fix implements: - Secure XML parsing with resolve_entities=False, load_dtd=False, and no_network=True - Configurable limits: 300 MB total extraction size, 10 MB per file, 1000 member count - Cumulative size tracking across all extractions - Early termination when limits are exceeded - Secure format detection of METS-GBS tar archives with _detect_mets_gbs() method: maximum file size (10 MB per file), maximum member count (1000 members), and exception handling to gracefully fail when limits are exceeded

Workarounds

Avoid processing METS-GBS archives from untrusted sources. If necessary, pre-validate archives in an isolated environment with resource limits.

References

Fix release: v2.91.0

Severity

5.5 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "docling"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.45.0"
            },
            {
              "fixed": "2.91.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-44018"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-409",
      "CWE-611",
      "CWE-776"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-06-03T21:13:32Z",
    "nvd_published_at": "2026-06-26T16:16:30Z",
    "severity": "MODERATE"
  },
  "details": "### Impact\nThe METS-GBS backend\u0027s XML parsing and the input document format detection lacked security controls, enabling:\n- XML External Entity (XXE) attacks to read local files or cause denial of service\n- Decompression bombs (zip bombs) to exhaust memory and disk space\n- Unbounded archive extraction consuming system resources\n\nAn attacker could craft malicious METS-GBS archives that, when processed, could read sensitive files, exhaust system resources, or cause application crashes.\n\n### Patches\nFixed in version 2.91.0. The fix implements:\n- Secure XML parsing with `resolve_entities=False`, `load_dtd=False`, and `no_network=True`\n- Configurable limits: 300 MB total extraction size, 10 MB per file, 1000 member count\n- Cumulative size tracking across all extractions\n- Early termination when limits are exceeded\n- Secure format detection of METS-GBS tar archives with `_detect_mets_gbs()` method: maximum file size (10 MB per file), maximum member count (1000 members), and exception handling to gracefully fail when limits are exceeded\n\n### Workarounds\nAvoid processing METS-GBS archives from untrusted sources. If necessary, pre-validate archives in an isolated environment with resource limits.\n\n### References\n- Fix release: [v2.91.0](https://github.com/docling-project/docling/releases/tag/v2.91.0)",
  "id": "GHSA-r3xg-rg9j-67fv",
  "modified": "2026-07-21T15:04:20Z",
  "published": "2026-06-03T21:13:32Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/docling-project/docling/security/advisories/GHSA-r3xg-rg9j-67fv"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-44018"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/docling-project/docling"
    },
    {
      "type": "WEB",
      "url": "https://github.com/docling-project/docling/releases/tag/v2.91.0"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/docling/PYSEC-2026-2144.yaml"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Docling: Unsafe Archive Extraction and XML Parsing in METS-GBS Backend"
}

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.

Detection rules are retrieved from Rulezet.

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

PYSEC-2026-2144

CVE-2026-44018 (GCVE-0-2026-44018)

GHSA-R3XG-RG9J-67FV

Impact

Patches

Workarounds

References

Tags

Sightings

Nomenclature

Related by attack behaviour