What’s Vulnerable › Vulnerabilities

CVE-2026-75104: Hugging Face Transformers Path Traversal via Checkpoint Index

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-17 · updated 2026-10-23
• Weakness: CWE-22

Description

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.

Affected products

• huggingface/transformers: through 5.15.0

References

• 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

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