CVE-2026-79675
NLTK before 3.10.3 JVM Argument Injection via Per-Call Options
- State
- Published
- Severity
- 9.3 Critical
- Published
- Aug 25, 2026
- Updated
- Aug 27, 2026
- Reserved
- Aug 25, 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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 9.3 Critical | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 9.8 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | VulnCheck |
Weaknesses
- CWE-88 Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')
Affected Products
| Product | Versions |
|---|---|
nltknltk |
|
References
- GitHub Security Advisory (GHSA-m4rf-3fr8-xwx3)vendor-advisory
- VulnCheck Advisory: NLTK before 3.10.3 JVM Argument Injection via Per-Call Optionsthird-party-advisory
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