CVE-2026-79675

CriticalCVSS 9.8/10Last modified Sep 1, 2026

Description

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.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-88

Affected software

Vendor	Product	Versions
nltk	nltk	< 3.10.3

References

https://github.com/nltk/nltk/security/advisories/GHSA-m4rf-3fr8-xwx3Exploit, Mitigation, Vendor Advisory
https://www.vulncheck.com/advisories/nltk-before-jvm-argument-injection-via-per-call-optionsThird Party Advisory

Timeline

Published: Aug 25, 2026
Last modified: Sep 1, 2026
NVD status: Analyzed

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