Understanding and Defending Against JVM Argument Injection in NLTK
This educational analysis covers CVE-2026-79675, a critical vulnerability in the Natural Language Toolkit (NLTK) that allows attackers to inject malicious JVM flags via the java() function. With a CVSS score of 9.8, this flaw enables arbitrary code execution, posing significant risks to affected systems. We will explore the root cause, attack surface, exploitation mechanics, and provide defensive strategies.