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CVE PROGRAM SOURCE RECORD4.3 Medium

CVE-2026-105747

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

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

docling-project docling

  • >= 2.45.0, < 2.131.0affected

docling-project docling-slim

  • >= 2.45.0, < 2.131.0affected

References