GHSA-m88r-rg27-5xfg

Suggest an improvement
Source
https://github.com/advisories/GHSA-m88r-rg27-5xfg
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-m88r-rg27-5xfg/GHSA-m88r-rg27-5xfg.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-m88r-rg27-5xfg
Aliases
  • CVE-2026-44020
Published
2026-06-03T21:14:15Z
Modified
2026-06-03T21:30:07.070879218Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
Docling: Unsafe XML Entity Expansion in USPTO Patent Backend
Details

Impact

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 - 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.

Patches

Fixed in version 2.74.0. The parser now uses defusedxml.sax.make_parser() with secure configuration that blocks external entity resolution (feature_external_ges=False, feature_external_pes=False) while allowing DTD declarations required by USPTO files. This prevents XXE attacks while maintaining compatibility with the USPTO XML format.

Workarounds

Avoid processing USPTO patent XML files from untrusted sources. Implement resource limits (memory, CPU time) when processing patent documents.

References

Database specific 
{
    "nvd_published_at": null,
    "cwe_ids": [
        "CWE-776"
    ],
    "severity": "HIGH",
    "github_reviewed": true,
    "github_reviewed_at": "2026-06-03T21:14:15Z"
}
References

Affected packages

PyPI / docling

Package

Name
docling
View open source insights on deps.dev
Purl
pkg:pypi/docling

Affected ranges

Type
ECOSYSTEM
Events
Introduced
2.13.0
Fixed
2.74.0

Affected versions

2.*
2.13.0
2.14.0
2.15.0
2.15.1
2.16.0
2.17.0
2.18.0
2.19.0
2.20.0
2.21.0
2.22.0
2.23.0
2.23.1
2.24.0
2.25.0
2.25.1
2.25.2
2.26.0
2.27.0
2.28.0
2.28.1
2.28.2
2.28.3
2.28.4
2.29.0
2.30.0
2.31.0
2.31.1
2.31.2
2.32.0
2.33.0
2.34.0
2.35.0
2.36.0
2.36.1
2.37.0
2.38.0
2.38.1
2.39.0
2.40.0
2.41.0
2.42.0
2.42.1
2.42.2
2.43.0
2.44.0
2.45.0
2.46.0
2.47.0
2.47.1
2.48.0
2.49.0
2.50.0
2.51.0
2.52.0
2.53.0
2.54.0
2.55.0
2.55.1
2.56.0
2.56.1
2.57.0
2.58.0
2.59.0
2.60.0
2.60.1
2.61.0
2.61.1
2.61.2
2.62.0
2.63.0
2.64.0
2.64.1
2.65.0
2.66.0
2.67.0
2.68.0
2.69.0
2.69.1
2.70.0
2.71.0
2.72.0
2.73.0
2.73.1

Database specific

source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-m88r-rg27-5xfg/GHSA-m88r-rg27-5xfg.json"