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PyTorch (< 2.6)

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Stanza: Remote Code Execution via Unsafe Pickle Deserialization in Model Loaders

Stanza, an NLP library, is vulnerable to remote code execution (CVE-2026-54499) due to an unsafe fallback mechanism when loading PyTorch model files, allowing an attacker who can place a malicious pretrain or model file to achieve arbitrary code execution on systems processing NLP pipelines, leading to credential theft, backdoors, data exfiltration, and lateral movement.

Stanza +1 deserialization rce python pytorch machine-learning supply-chain cwe-502 nlp +1
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