CVE-2026-65920: Huggingface Diffusers

Medium severity, CVSS 4.3. EPSS: 0.4% chance of exploitation in the next 30 days.

Diffusers through 0.39.0, fixed in commit cee298c, contains a path traversal vulnerability in the _get_checkpoint_shard_files function that allows attackers to read arbitrary files by supplying malicious weight_map values in model index JSON. Attackers can use ../ sequences or absolute paths in weight_map entries to escape the model directory and read safetensors files outside the intended location during model loading.

Affected products

• Huggingface Diffusers: up to and including 0.39.0

Published 2026-07-23. Last modified 2026-07-23.