Accelerate path traversal and denial of service via sharded checkpoint weight_map entries

Hugging Face Accelerate through 1.14.0 contains a path traversal vulnerability in load_checkpoint_in_model and load_checkpoint_and_dispatch functions that fail to sanitize weight_map entries from sharded checkpoint indexes. Attackers can supply relative paths with ../ sequences or absolute paths to read arbitrary files, or point shard entries at named pipes to cause indefinite blocking and denial of service.

CVSS 3.1

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H

Severity from

GitHub (reviewed advisory)

Weakness

CWE-22

Also known as

CVE-2026-69112, PYSEC-2026-3804

• nvd.nist.gov/vuln/detail/CVE-2026-69112
• github.com/huggingface/accelerate/issues/4067
• github.com/huggingface/accelerate/pull/4070
• github.com/huggingface/accelerate/pull/4138
• github.com/huggingface/accelerate
• www.vulncheck.com/advisories/hugging-face-accelerate-path-traversal-and-dos-via-weight-map