Docling: Unsafe Archive Extraction and XML Parsing in METS-GBS Backend

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Summary

CVECVE-2026-44018
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-06-26 16:16:30 UTC
Updated2026-06-26 16:16:30 UTC
DescriptionDocling simplifies document processing by parsing diverse formats and providing integrations with the generative AI ecosystem. From 2.45.0 until 2.91.0, the METS-GBS backend's XML parsing and the input document format detection lacked security controls. An attacker could craft malicious METS-GBS archives that, when processed, could read sensitive files, exhaust system resources, or cause application crashes. This vulnerability is fixed in 2.91.0.

Risk And Classification

Primary CVSS: v3.1 5.5 MEDIUM from [email protected]

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

Problem Types: CWE-409 | CWE-611 | CWE-776 | CWE-409 CWE-409: Improper Handling of Highly Compressed Data (Data Amplification) | CWE-611 CWE-611: Improper Restriction of XML External Entity Reference | CWE-776 CWE-776: Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary5.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
3.1CNADECLARED5.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CVSS v3.1 Breakdown

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

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Docling-project Docling affected >= 2.45.0, < 2.91.0 Not specified

References

ReferenceSourceLinkTags
github.com/docling-project/docling/releases/tag/v2.91.0 [email protected] github.com
github.com/docling-project/docling/security/advisories/GHSA-r3xg-rg9j-67fv [email protected] github.com
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