CVE-2026-44020

Docling simplifies document processing by parsing diverse formats and providing integrations with the generative AI ecosystem. From 2.13.0 until 2.74.0, the USPTO patent XML parser used the standard xml.sax.parseString() without protection against XML External Entity (XXE) attacks. An attacker could craft malicious USPTO patent XML files with external entity references that could read arbitrary files from the server filesystem, perform Server-Side Request Forgery (SSRF) attacks, or cause denial of service through entity expansion (Billion Laughs attack). The vulnerability affects three USPTO patent format parsers: ICE (v4.x), Grant v2.5, and Application v1.x. This vulnerability is fixed in 2.74.0.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/docling-project/docling/security/advisories/GHSA-m88r-rg27-5xfg	Mitigation Patch Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:docling:docling:*:*:*:*:*:python:*:*

History

26 Jun 2026, 19:58

Type	Values Removed	Values Added
First Time		Docling Docling docling
CPE		cpe:2.3:a:docling:docling::::::python::*
References	~~() https://github.com/docling-project/docling/security/advisories/GHSA-m88r-rg27-5xfg -~~	() https://github.com/docling-project/docling/security/advisories/GHSA-m88r-rg27-5xfg - Mitigation, Patch, Vendor Advisory

24 Jun 2026, 18:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-24 18:17

Updated : 2026-06-26 19:58

NVD link : CVE-2026-44020

Mitre link : CVE-2026-44020

CVE.ORG link : CVE-2026-44020

JSON object : View

Products Affected

docling

docling

CWE

CWE-776

Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')

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