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Vulnerabilities CVE-2026-65920

CVE-2026-65920

Medium
Open
TLP:CLEAR

Diffusers Path Traversal via weight_map Arbitrary File Read

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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.

Details

CVSS Score
5.3
EPSS Score
0.33%

25.4th percentile

CVSS Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Confidence
90%
Published
Jul 23, 2026
Last Modified
Jul 24, 2026
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