CVE-2026-79675CWE-88

CVE-2026-79675

Critical · published August 25, 2026

CVSS v3.1
9.8
EPSS
1%
Percentile
55.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
9.3 · 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
EPSS
0.00775 · 55.3th percentile
Weakness
CWE-88 · Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')
Published
2026-08-25T20:17Z
Affected products (1)
ProductVersionsFixed in
nltk/nltk< 3.10.33.10.3
References (2)
https://github.com/nltk/nltk/security/advisories/GHSA-m4rf-3fr8-xwx3 · [email protected]https://www.vulncheck.com/advisories/nltk-before-jvm-argument-injection-via-per-call-options · [email protected]
EPSS history
Timeline
  • 27 AUG 06:46Z
    EPSS moved — → 0%
    epss
  • 25 AUG 15:16Z
    NLTK before 3.10.3 JVM Argument Injection via Per-Call Options
    cvelistv5