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
docling: docling
References4
- github.com/docling-project/docling/security/advisories/GHSA-3cr… PatchVendor Advisory
- github.com/docling-project/docling/commit/ebae65cd71c37c88b3618… Patch
- github.com/docling-project/docling/pull/4412 Issue TrackingPatch
- github.com/docling-project/docling/releases/tag/v2.131.0 Release Notes
Metrics
- CVSS 3.1
-
4.3
MEDIUM
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L - EPSS — exploit probability
- 0% percentile: 23 · as of 10 November 2026
- CWE
- CWE-409CWE-770
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