Vulnerability-Lookup

PYSEC-2026-4194

Vulnerability from pysec - Published: 2026-10-05 22:16 - Updated: 2026-10-08 09:43

Details

Docling simplifies document processing by parsing diverse formats and providing integrations with the generative AI ecosystem. From 2.45.0 until 2.131.0, METS-GBS format detection in docling/datamodel/document.py and the backend in docling/backend/mets_gbs_backend.py call tarfile.TarFile.getmembers() before enforcing the max_member_count limit, causing the full archive member list to be allocated before the limit can stop processing. A small gzip-compressed tar archive with a very large number of empty members can therefore consume memory proportional to the declared member count, including during format detection before the allowed_formats restriction is applied. This issue is a residual weakness in the member-count protection added for CVE-2026-44018. This issue is fixed in 2.131.0.

Severity

4.3 (Medium)


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

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": "2.131.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.100.0",
        "2.101.0",
        "2.102.0",
        "2.102.1",
        "2.102.2",
        "2.103.0",
        "2.104.0",
        "2.105.0",
        "2.106.0",
        "2.107.0",
        "2.108.0",
        "2.109.0",
        "2.110.0",
        "2.111.0",
        "2.112.0",
        "2.113.0",
        "2.114.0",
        "2.115.0",
        "2.116.0",
        "2.117.0",
        "2.118.0",
        "2.118.1",
        "2.119.0",
        "2.120.1",
        "2.120.2",
        "2.120.3",
        "2.121.0",
        "2.122.0",
        "2.123.0",
        "2.123.1",
        "2.124.0",
        "2.125.0",
        "2.126.0",
        "2.127.0",
        "2.128.0",
        "2.129.0",
        "2.130.0",
        "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",
        "2.91.0",
        "2.92.0",
        "2.93.0",
        "2.94.0",
        "2.95.0",
        "2.96.0",
        "2.96.1",
        "2.97.0",
        "2.98.0",
        "2.99.0"
      ]
    }
  ],
  "aliases": [
    "CVE-2026-105747",
    "GHSA-3cr3-8m4c-fpxw"
  ],
  "details": "Docling simplifies document processing by parsing diverse formats and providing integrations with the generative AI ecosystem. From 2.45.0 until 2.131.0, METS-GBS format detection in docling/datamodel/document.py and the backend in docling/backend/mets_gbs_backend.py call tarfile.TarFile.getmembers() before enforcing the max_member_count limit, causing the full archive member list to be allocated before the limit can stop processing. A small gzip-compressed tar archive with a very large number of empty members can therefore consume memory proportional to the declared member count, including during format detection before the allowed_formats restriction is applied. This issue is a residual weakness in the member-count protection added for CVE-2026-44018. This issue is fixed in 2.131.0.",
  "id": "PYSEC-2026-4194",
  "modified": "2026-10-08T09:43:12.545255Z",
  "published": "2026-10-05T22:16:57.633Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/docling-project/docling/releases/tag/v2.131.0"
    },
    {
      "type": "FIX",
      "url": "https://github.com/docling-project/docling/commit/ebae65cd71c37c88b36185b406a449b92d8f7ffa"
    },
    {
      "type": "FIX",
      "url": "https://github.com/docling-project/docling/pull/4412"
    },
    {
      "type": "FIX",
      "url": "https://github.com/docling-project/docling/security/advisories/GHSA-3cr3-8m4c-fpxw"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-105747 (GCVE-0-2026-105747)

Vulnerability from cvelistv5 – Published: 2026-10-05 21:32 – Updated: 2026-10-06 14:48

Title

Docling: METS-GBS archive member limit enforced after full member enumeration (memory exhaustion during format detection)

Summary

Severity

4.3 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-06 14:34 UTC

CWE

CWE-409 - Improper Handling of Highly Compressed Data (Data Amplification)
CWE-770 - Allocation of Resources Without Limits or Throttling

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7553 records in the last 180 days details

References

4 references

URL	Tags
https://github.com/docling-project/docling/securi…	x_refsource_CONFIRM
https://github.com/docling-project/docling/pull/4412	x_refsource_MISC
https://github.com/docling-project/docling/commit…	x_refsource_MISC
https://github.com/docling-project/docling/releas…	x_refsource_MISC

Impacted products

2 products

Vendor	Product	Version
docling-project	docling	Affected: >= 2.45.0, < 2.131.0
docling-project	docling-slim	Affected: >= 2.45.0, < 2.131.0

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-105747",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-06T14:34:13.770203Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-06T14:48:33.056Z",
          "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 2.131.0"
            }
          ]
        },
        {
          "product": "docling-slim",
          "vendor": "docling-project",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 2.45.0, \u003c 2.131.0"
            }
          ]
        }
      ],
      "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 2.131.0, METS-GBS format detection in docling/datamodel/document.py and the backend in docling/backend/mets_gbs_backend.py call tarfile.TarFile.getmembers() before enforcing the max_member_count limit, causing the full archive member list to be allocated before the limit can stop processing. A small gzip-compressed tar archive with a very large number of empty members can therefore consume memory proportional to the declared member count, including during format detection before the allowed_formats restriction is applied. This issue is a residual weakness in the member-count protection added for CVE-2026-44018. This issue is fixed in 2.131.0."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 4.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L",
            "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-770",
              "description": "CWE-770: Allocation of Resources Without Limits or Throttling",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-05T21:32:34.438Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/docling-project/docling/security/advisories/GHSA-3cr3-8m4c-fpxw",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/docling-project/docling/security/advisories/GHSA-3cr3-8m4c-fpxw"
        },
        {
          "name": "https://github.com/docling-project/docling/pull/4412",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/docling-project/docling/pull/4412"
        },
        {
          "name": "https://github.com/docling-project/docling/commit/ebae65cd71c37c88b36185b406a449b92d8f7ffa",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/docling-project/docling/commit/ebae65cd71c37c88b36185b406a449b92d8f7ffa"
        },
        {
          "name": "https://github.com/docling-project/docling/releases/tag/v2.131.0",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/docling-project/docling/releases/tag/v2.131.0"
        }
      ],
      "source": {
        "advisory": "GHSA-3cr3-8m4c-fpxw",
        "discovery": "UNKNOWN"
      },
      "title": "Docling: METS-GBS archive member limit enforced after full member enumeration (memory exhaustion during format detection)"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-105747",
    "datePublished": "2026-10-05T21:32:34.438Z",
    "dateReserved": "2026-10-05T19:11:07.947Z",
    "dateUpdated": "2026-10-06T14:48:33.056Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

GHSA-3CR3-8M4C-FPXW

Vulnerability from github – Published: 2026-10-06 13:41 – Updated: 2026-10-06 13:43

Summary

Docling: METS-GBS archive member limit enforced after full member enumeration (memory exhaustion during format detection)

Details

Summary

When docling detects the input format of a gzip-compressed tar archive (METS-GBS), and later when the METS-GBS backend opens it, it calls tarfile.TarFile.getmembers(). That builds the full member list in memory before the max_member_count limit is checked. A small archive with a very large number of empty members therefore makes docling allocate memory in proportion to the member count, and the limit has no effect.

Details

docling/datamodel/document.py (format detection) and docling/backend/mets_gbs_backend.py both iterate tar.getmembers() and count members inside the loop. getmembers() reads every header up front.

Measured on Python 3.12: an archive of 1,000,000 empty members compresses to about 6.2 MB and makes getmembers() hold about 408 MB (about 66 times the input size). Format detection runs for any application/gzip input before allowed_formats is applied, so the allocation happens even when METS-GBS is not an allowed format.

This check was introduced by the fix for CVE-2026-44018 (GHSA-r3xg-rg9j-67fv) in 2.91.0. The eager enumeration it relies on has been there since METS-GBS detection was added in 2.45.0.

Impact

Memory exhaustion of the converting process, proportional to the size of the input archive. Confidentiality and integrity are not affected.

Patches

Fixed in docling 2.131.0 by #4412. Format detection and the METS-GBS backend now read archive members one at a time and stop as soon as max_member_count is exceeded, including when looking up page files.

Workarounds

Upgrade to 2.131.0. For older versions:

Reject gzip or tar inputs before they reach docling when METS-GBS support is not needed, and run conversions of untrusted input with memory limits.

Severity

4.3 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "docling"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.45.0"
            },
            {
              "fixed": "2.131.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "docling-slim"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.92.0"
            },
            {
              "fixed": "2.131.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-105747"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-409",
      "CWE-770"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-10-06T13:41:16Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "### Summary\n\nWhen docling detects the input format of a gzip-compressed tar archive (METS-GBS), and later when the METS-GBS backend opens it, it calls `tarfile.TarFile.getmembers()`. That builds the full member list in memory before the `max_member_count` limit is checked. A small archive with a very large number of empty members therefore makes docling allocate memory in proportion to the member count, and the limit has no effect.\n\n### Details\n\n`docling/datamodel/document.py` (format detection) and `docling/backend/mets_gbs_backend.py` both iterate `tar.getmembers()` and count members inside the loop. `getmembers()` reads every header up front.\n\nMeasured on Python 3.12: an archive of 1,000,000 empty members compresses to about 6.2 MB and makes `getmembers()` hold about 408 MB (about 66 times the input size). Format detection runs for any `application/gzip` input before `allowed_formats` is applied, so the allocation happens even when METS-GBS is not an allowed format.\n\nThis check was introduced by the fix for CVE-2026-44018 (GHSA-r3xg-rg9j-67fv) in 2.91.0. The eager enumeration it relies on has been there since METS-GBS detection was added in 2.45.0.\n\n### Impact\n\nMemory exhaustion of the converting process, proportional to the size of the input archive. Confidentiality and integrity are not affected.\n\n### Patches\n\nFixed in docling 2.131.0 by [#4412](https://github.com/docling-project/docling/pull/4412). Format detection and the METS-GBS backend now read archive members one at a time and stop as soon as `max_member_count` is exceeded, including when looking up page files.\n\n### Workarounds\n\nUpgrade to 2.131.0. For older versions:\n\nReject gzip or tar inputs before they reach docling when METS-GBS support is not needed, and run conversions of untrusted input with memory limits.",
  "id": "GHSA-3cr3-8m4c-fpxw",
  "modified": "2026-10-06T13:43:19Z",
  "published": "2026-10-06T13:41:16Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/docling-project/docling/security/advisories/GHSA-3cr3-8m4c-fpxw"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-105747"
    },
    {
      "type": "WEB",
      "url": "https://github.com/docling-project/docling/pull/4412"
    },
    {
      "type": "WEB",
      "url": "https://github.com/docling-project/docling/commit/ebae65cd71c37c88b36185b406a449b92d8f7ffa"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/docling-project/docling"
    },
    {
      "type": "WEB",
      "url": "https://github.com/docling-project/docling/releases/tag/v2.131.0"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Docling: METS-GBS archive member limit enforced after full member enumeration (memory exhaustion during format detection)"
}

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.

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.

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Action not permitted

PYSEC-2026-4194

CVE-2026-105747 (GCVE-0-2026-105747)

GHSA-3CR3-8M4C-FPXW

Summary

Details

Impact

Patches

Workarounds

Tags

Sightings

Nomenclature

Related by attack behaviour