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CVE-2026-31248

CVE-2026-31248

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

CVSS 7.5 · High · EPSS 0.3%

Published
Updated

Stack: python

Affected products and versions

  • n/a

    Versions
    • n/a: Affected

    No fix published

  • docling PyPI

    Versions
    • 0.1.0
    • 0.1.1
    • 0.1.2
    • 0.2.0
    • 0.3.0
    • 0.3.1
    • 0.4.0
    • 1.0.0
    • 1.0.1
    • 1.0.2
    • 1.1.0
    • 1.1.1
    • 1.1.2
    • 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
    • 1.2.0
    • 1.2.1
    • 1.20.0
    • 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
    • 2.0.0
    • 2.1.0
    • 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
    • 2.2.0
    • 2.2.1
    • 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
    • 2.3.0
    • 2.3.1
    • 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
    • 2.4.0
    • 2.4.1
    • 2.4.2
    • 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
    • 2.5.0
    • 2.5.1
    • 2.5.2
    • 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
    • 2.6.0
    • 2.60.0
    • 2.60.1
    • 2.61.0
    • 2.7.0
    • 2.7.1
    • 2.8.0
    • 2.8.1
    • 2.8.2
    • 2.8.3
    • 2.9.0
    Affected ranges
    • ECOSYSTEM: ≤ 2.61.0

    No fix published

Original sources

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