CVE-2026-79675: nltk nltk

CVSS 9.8 (critical) · published 2026-08-25

NLTK before 3.10.3 fails to validate JVM options passed through the per-call options parameter in the java() function, allowing attackers to inject dangerous JVM flags. Attackers can supply malicious options like -agentpath, -javaagent, or @argfile to Stanford wrapper classes to achieve arbitrary code execution.

Affected products (NVD): nltk nltk

Fixed in (NVD): 3.10.3

Weakness: CWE-88

Source: NVD CVE-2026-79675

References

• https://github.com/nltk/nltk/security/advisories/GHSA-m4rf-3fr8-xwx3
• https://www.vulncheck.com/advisories/nltk-before-jvm-argument-injection-via-per-call-options

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