Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-65920— Diffusers Path Traversal via weight_map Arbitrary File Read

Quick assessment

Affected
huggingface diffusers
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Hugging Face diffusers是Hugging Face公司开源的一个生成图像、音频和3D分子结构的扩散模型库。 Diffusers 0.39.0及之前版本存在路径遍历漏洞，该漏洞源于_get_checkpoint_shard_files函数中存在路径遍历问题，允许攻击者通过提供恶意的weight_map值在模型索引JSON中读取任意文件。攻击者可利用../序列或绝对路径在weight_map条目中逃出模型目录，在模型加载期间读取指定位置外的safetensors文件。

CVSS 4.3 · Medium EPSS 0.40% · P32

Possible ATT&CK Techniques 1 AI

T1555 · Credentials from Password Stores

Affected Version Matrix 2

VendorProduct Version RangeStatus
huggingface diffusers ≤ 0.39.0 affected
cee298c1f37c439a9a408396b8283a921238a1c6 unaffected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-65920

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Diffusers Path Traversal via weight_map Arbitrary File Read
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
Hugging Face diffusers 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Hugging Face diffusers是Hugging Face公司开源的一个生成图像、音频和3D分子结构的扩散模型库。 Diffusers 0.39.0及之前版本存在路径遍历漏洞，该漏洞源于_get_checkpoint_shard_files函数中存在路径遍历问题，允许攻击者通过提供恶意的weight_map值在模型索引JSON中读取任意文件。攻击者可利用../序列或绝对路径在weight_map条目中逃出模型目录，在模型加载期间读取指定位置外的safetensors文件。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
huggingface diffusers 0 ~ 0.39.0 -

II. Public POCs for CVE-2026-65920

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-65920

请登录查看更多情报信息。

Patches & Fixes for CVE-2026-65920 (2)

Vendor Advisories for CVE-2026-65920 (2)

IV. Related Vulnerabilities

Same product: diffusers
Same vendor: huggingface
Same weakness: CWE-22

V. Comments for CVE-2026-65920

No comments yet

Leave a comment