What’s Vulnerable › Vulnerabilities

CVE-2021-44557

• Severity: critical (CVSS 9.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-12-08 · updated 2026-06-17
• Weakness: CWE-611

Description

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

How to fix

Upgrade to a fixed version: Kb Multiner 08-25-2021. Check the vendor advisory for mitigations.

References

• https://github.com/KBNLresearch/multiNER
• https://github.com/KBNLresearch/multiNER/pull/3
• https://github.com/KBNLresearch/multiNER
• https://github.com/KBNLresearch/multiNER/pull/3

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