HighVulnerability

CVE-2026-44020: Docling USPTO patent XML parser XXE file read and SSRF via crafted XML

Source: NVD(opens in a new tab)
Identifier: CVE-2026-44020
Published: June 24, 2026
Record updated: October 9, 2026

Affected: docling >= 2.13.0, < 2.74.0
Fixed in: 2.74.0
released February 17, 2026, 127 days before disclosure
Known exploitation: Not listed in the CISA Known Exploited Vulnerabilities catalog at the last check.
EPSS: 0.6%

Summary

CVE-2026-44020 affects Docling versions 2.13.0 through 2.74.0. The USPTO patent XML parser called xml.sax.parseString() without XML External Entity protection, affecting the ICE (v4.x), Grant v2.5 and Application v1.x parsers. A crafted patent XML file could read arbitrary server files, trigger SSRF, or cause denial of service via entity expansion.

Mitigation

Fixed in 2.74.0.

Details

Scores and exploitation

CVSS score: 7.5(high)
Patch available: Yes
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector: network
Attack complexity: low
Privileges required: none
User interaction: none
EPSS: 0.6%Estimated probability that this CVE is exploited in the next 30 days, from the FIRST Exploit Prediction Scoring System. Read on November 9, 2026.
Disclosure date: June 24, 2026

Weaknesses and techniques

Weakness (CWE): CWE-776
Attack pattern (CAPEC): CAPEC-197

Affected

Packages: docling@>= 2.13.0, < 2.74.0 (fixed: 2.74.0)

Classification

Attack type: Other
Attack sophistication: Moderate
AI component targeted: Framework
Impact: Confidentiality,
Availability
Labels: security

How this record was produced

Summaries, mitigations and labels on this page are generated automatically from the source. The linked source is authoritative. The source gives this advisory a description and no title, so the title above is a headline generated from the source text.

Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-44020

First tracked: June 25, 2026 at 08:22 AM ET, from NVD/CVE Database

Classifier: claude-haiku-5-5, prompt v4

Classifier confidence: 80% (self-assessed)

Affected packages in the Exposure Registry

Matched by package name and ecosystem. Each entry shows whether the package delegates to a language model and how many tracked packages depend on it.

doclingPyPINo LLM dependency detected · 9 tracked dependents

Summary

Mitigation

Affected packages in the Exposure Registry

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