docling-project docling/docling-slim up to 2.130.x METS-GBS Format Detection document.py tarfile.TarFile.getmembers allocation of resources

Summaryinfo

A vulnerability marked as problematic has been reported in docling-project docling and docling-slim up to 2.130.x. The affected element is the function tarfile.TarFile.getmembers of the file docling/datamodel/document.py of the component METS-GBS Format Detection. The manipulation leads to allocation of resources. This vulnerability is uniquely identified as CVE-2026-105747. The attack is possible to be carried out remotely. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in docling-project docling and docling-slim up to 2.130.x. It has been rated as problematic. This issue affects the function tarfile.TarFile.getmembers of the file docling/datamodel/document.py of the component METS-GBS Format Detection. The manipulation with an unknown input leads to a allocation of resources vulnerability. Using CWE to declare the problem leads to CWE-770. The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor. Impacted is availability. The summary by CVE is:

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.

The advisory is shared at github.com. The identification of this vulnerability is CVE-2026-105747 since 10/05/2026. The exploitation is known to be easy. The attack may be initiated remotely. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1499 for this issue.

Upgrading to version 2.131.0 eliminates this vulnerability.

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Productinfo

Type

• Project Management Software

Vendor

• docling-project

Name

• docling
• docling-slim

Version

• 2.130

Website

• Product: https://github.com/docling-project/docling/

CPE 2.3info

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CPE 2.2info

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