CVE-2026-44018

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

State: Published
Severity: 5.5 Medium
Published: Jun 26, 2026
Updated: Jun 26, 2026
Reserved: May 4, 2026

Description

Docling 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.

Scores

CVSS	Score	Vector	Source
3.1	5.5 Medium	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H	GitHub_M

Weaknesses

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

Affected Products

Product	Versions
doclingdocling-project	>= 2.45.0, < 2.91.0Affected

References

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