CVE-2026-79657 - NLTK before 3.10.3 Remote Code Execution via Unsafe Pickle Deserialization

CVE-2026-79657 - NLTK before 3.10.3 Remote Code Execution via Unsafe Pickle Deserialization

https://cvefeed.io/rssfeed/latest.atom / Tue, 08/25/2026 - 16:28
CVE ID :CVE-2026-79657
Published : Aug. 25, 2026, 11:33 a.m. | 55 minutes ago
Description :NLTK versions before 3.10.3 contain a remote code execution vulnerability in allowlisted pickle loaders that trust entire module namespaces instead of specific safe callables. Attackers can craft malicious pickle payloads invoking dangerous in-namespace functions like ReppTokenizer._execute and numpy.f2py.crackfortran.myeval through pickle REDUCE to execute arbitrary commands during model or tokenizer artifact loading.
Severity: 9.8 | CRITICAL
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