CVE-2021-44557: Kb Multiner

Critical severity, CVSS 9.1. EPSS: 1.3% chance of exploitation in the next 30 days.

National Library of the Netherlands multiNER <= c0440948057afc6e3d6b4903a7c05e666b94a3bc is affected by an XML External Entity (XXE) vulnerability in multiNER/ner.py. Since XML parsing resolves external entities, a malicious XML stream could leak internal files and/or cause a DoS.

Affected products

• Kb Multiner: before 08-25-2021 (fixed in 08-25-2021)

Published 2021-12-08. Last modified 2026-06-17.