CVE-2026-65920

Description

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.

References

https://www.vulncheck.com/advisories/diffusers-path-traversal-via-weight-map-arbitrary-file-read

https://github.com/huggingface/diffusers/pull/14182

https://github.com/huggingface/diffusers/issues/14175

https://github.com/huggingface/diffusers/commit/cee298c1f37c439a9a408396b8283a921238a1c6

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3

CVSS v4