PYSEC-2026-2454 Docling's METS GBS backend is vulnerable to XML Entity Expansion (XXE) attacks

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 Bo...

CVE-2026-31247

Docling's JATS XML backend is vulnerable to XML Entity Expansion XXE attacks thru 2.61.0. The backend uses etree.parse to parse XML files without disabling entity resolution. An attacker can craft a malicious XML file containing a nested entity expansion payload XML Bomb. When processed by Doclin...

CVE-2026-31247

Docling’s JATS XML backend (up to version 2.61.0) is vulnerable to XML Entity Expansion (XXE). The backend uses etree.parse() without disabling entity resolution, allowing an attacker to submit a crafted XML with nested entity expansions (XML Bomb). Processing such payloads causes exponential ent...