CVE-2026-65920

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.

CVSS 4.0

5.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

CVSS 3.1

4.3CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

EPSS

0.4% chance of exploitation in the next 30 days; higher than 33% of CVEs (scores of 2026-10-25)

CWE

CWE-22

Published

2026-07-23

Modified

2026-10-24

Record from

the NVD, synced 2026-10-24

References

• https://github.com/huggingface/diffusers/commit/cee298c1f37c439a9a408396b8283a921238a1c6
• https://github.com/huggingface/diffusers/issues/14175
• https://github.com/huggingface/diffusers/pull/14182
• https://www.vulncheck.com/advisories/diffusers-path-traversal-via-weight-map-arbitrary-file-read

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