CVE-2026-65920

Summary

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 Software

VendorProductVersion RangeStatus
huggingfacediffusers0 <= 0.39.0affected
huggingfacediffuserscee298c1f37c439a9a408396b8283a921238a1c6unaffected

Weaknesses

  • CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: poc
    • Automatable: no
    • Technical Impact: partial

References