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2 IOCs

Critical Hugging Face Transformers Flaw Enables Remote Code Execution

Cyber Press
Cyber Press
Published June 5, 2026Original Report

Excerpt

A critical vulnerability in the Hugging Face Transformers library has exposed millions of machine learning engineers and enterprise AI pipelines to silent remote code execution without ever setting  trust_remote_code=True . Tracked as CVE-2026-4372 (CVSS 7.8 High), the flaw affects Transformers versions 4.56.0 through 5.2.x and was patched in v5.3.0, released on March 4, 2026. The flaw resides in the library’s kernel-dispatch code path,…

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Attack Flow5 steps · MITRE ATT&CK mapped

Initial AccessTA0001T1190
1/5
Exploit Public-Facing Application
ActionUpload malicious package
An attacker uploads a malicious Python package to the Hugging Face Hub.

Indicators of Compromise

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2 indicators

TypeIndicatorConfidenceScoreFirst Seen
CVECVE-2025-32434MediumScore 51/100First seen
CVECVE-2026-4372MediumScore 51/100First seen

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