PYSEC-2026-2454

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Import Source
https://github.com/pypa/advisory-database/blob/main/vulns/docling/PYSEC-2026-2454.yaml
JSON Data
https://api.osv.dev/v1/vulns/PYSEC-2026-2454
Aliases
Published
2026-07-13T15:15:45Z
Modified
2026-07-13T16:31:40Z
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's METS GBS backend is vulnerable to XML Entity Expansion (XXE) attacks
Details

Docling's METS GBS backend is vulnerable to XML Entity Expansion (XXE) attacks thru 2.61.0. The backend extracts and validates XML files from .tar.gz archives using etree.fromstring() without disabling entity resolution. An attacker can craft a malicious XML file with nested entity definitions (XML Bomb) and package it into a .tar.gz archive. When processed by Docling, the exponential expansion of entities during XML parsing leads to excessive resource consumption, resulting in a denial of service (DoS) condition on the system running the Docling parser.

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
0 Unknown introduced version / All previous versions are affected
Last Affected
2.61.0

Affected versions

0.*
0.1.0
0.1.1
0.1.2
0.2.0
0.3.0
0.3.1
0.4.0
1.*
1.0.0
1.0.1
1.0.2
1.1.0
1.1.1
1.1.2
1.2.0
1.2.1
1.3.0
1.4.0
1.5.0
1.6.0
1.6.1
1.6.2
1.6.3
1.7.0
1.7.1
1.8.0
1.8.1
1.8.2
1.8.3
1.8.4
1.8.5
1.9.0
1.10.0
1.11.0
1.12.0
1.12.1
1.12.2
1.13.0
1.13.1
1.14.0
1.15.0
1.16.0
1.16.1
1.17.0
1.18.0
1.19.0
1.19.1
1.20.0
2.*
2.0.0
2.1.0
2.2.0
2.2.1
2.3.0
2.3.1
2.4.0
2.4.1
2.4.2
2.5.0
2.5.1
2.5.2
2.6.0
2.7.0
2.7.1
2.8.0
2.8.1
2.8.2
2.8.3
2.9.0
2.10.0
2.11.0
2.12.0
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

Database specific

source 
"https://github.com/pypa/advisory-database/blob/main/vulns/docling/PYSEC-2026-2454.yaml"