PT-2026-59124 · Pypi · Docling

Published 2026-07-13 · Updated 2026-07-13

OSV

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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 Docling, the exponential expansion of entities leads to excessive resource consumption, resulting in a denial of service (DoS) condition on the system running the Docling parser.

Fix

Related Identifiers

PYSEC-2026-2455

Affected Products

Docling

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2026-31247 · Security Note
• https://osv.dev/vulnerability/PYSEC-2026-2455 · Vendor Advisory
• https://github.com/docling-project/docling · Note
• https://pypi.org/project/docling · Note
• https://notion.so/CVE-2026-31247-35d1e1393188818fa654c116c6a470bb · Note
• https://github.com/advisories/GHSA-cr42-rg2m-mq4q · Note