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

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-105747
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-05 22:16:57 UTC
Updated2026-10-05 22:16:57 UTC
DescriptionDocling 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.

Risk And Classification

Primary CVSS: v3.1 4.3 MEDIUM from [email protected]

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

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

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary4.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
3.1CNADECLARED4.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Docling-project Docling affected >= 2.45.0, < 2.131.0 Not specified
CNA Docling-project Docling-slim affected >= 2.45.0, < 2.131.0 Not specified

References

ReferenceSourceLinkTags
github.com/docling-project/docling/commit/ebae65cd71c37c88b36185b406a449... [email protected] github.com
github.com/docling-project/docling/pull/4412 [email protected] github.com
github.com/docling-project/docling/security/advisories/GHSA-3cr3-8m4c-fpxw [email protected] github.com
github.com/docling-project/docling/releases/tag/v2.131.0 [email protected] github.com
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