Hugging Face Transformers fails to validate shard filenames in checkpoint index files, allowing attackers to read arbitrary files outside the model directory. Attackers can supply malicious index files with parent-directory references or absolute paths that are joined without validation, enabling file disclosure and filesystem reconnaissance.
Fix
Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.
Change history 1
- First seenCVSS 6.8NVD modified 2026-10-23 16:10
Affected (CPE criteria) 0
NVD has not attached CPE configurations yet.
References 6
- https://github.com/huggingface/transformers
- https://github.com/huggingface/transformers/blob/main/src/transformers/utils/hub.py
- https://github.com/huggingface/transformers/issues/47176
- https://github.com/huggingface/transformers/issues/47177
- https://www.vulncheck.com/advisories/hugging-face-transformers-path-traversal-via-checkpoint-index
- https://github.com/huggingface/transformers/issues/47176