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[ CVE-2026-105747 · Published 5 Oct 2026 ]

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

CVSS 4.3 EPSS <1%Fix available

[ Description ]Official description

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.

[ Fixes ]Fixes and patches

  • docling 2.131.0Fixed version · GitHub Advisories · pip package docling: upgrade to 2.131.0 or later (affected >= 2.45.0, < 2.131.0)
  • docling-slim 2.131.0Fixed version · GitHub Advisories · pip package docling-slim: upgrade to 2.131.0 or later (affected >= 2.92.0, < 2.131.0)
  • Patch on github.comVendor patch or bulletin · NVD · Reference tagged 'Patch' by NVD
  • Patch on github.comVendor patch or bulletin · NVD · Reference tagged 'Patch' by NVD
  • Patch on github.comVendor patch or bulletin · NVD · Reference tagged 'Patch' by NVD

[ Packages ]Affected open-source packages

[ References ]References