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

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2026-71281— peft Unsafe Deserialization via torch.load() Without weights_only in LoRA-GA and CorDA Modules

Quick assessment

Affected
huggingface peft
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Hugging Face PEFT是Hugging Face公司的一个参数高效微调模型库。 Hugging Face PEFT 0.19.1及之前版本存在反序列化注入漏洞，该漏洞源于src/peft/tuners/lora/corda.py和src/peft/tuners/lora/loraga.py中的LoRA-GA和CorDA初始化模块在加载配置指定的缓存/协方差文件时调用torch.load()且未设置weights_only=True，绕过安全加载包装器，导致反序列化恶意文件时可执行任意代码。

CVSS 8.8 · High EPSS 0.27% · P20

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution

Affected Version Matrix 1

VendorProduct Version RangeStatus
huggingface peft ≤ 0.19.1 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-71281

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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
peft Unsafe Deserialization via torch.load() Without weights_only in LoRA-GA and CorDA Modules
Source: CVE Program / CVE List V5
Vulnerability Description
Hugging Face peft's LoRA-GA and CorDA initialization modules (src/peft/tuners/lora/corda.py lines ~102 and ~163, and src/peft/tuners/lora/loraga.py line ~101) call torch.load on config-specified cache/covariance files without weights_only=True, bypassing peft's own safe-loading wrapper used elsewhere in the codebase.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
可信数据的反序列化
Source: CVE Program / CVE List V5
Vulnerability Title
Hugging Face PEFT 反序列化注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Hugging Face PEFT是Hugging Face公司的一个参数高效微调模型库。 Hugging Face PEFT 0.19.1及之前版本存在反序列化注入漏洞，该漏洞源于src/peft/tuners/lora/corda.py和src/peft/tuners/lora/loraga.py中的LoRA-GA和CorDA初始化模块在加载配置指定的缓存/协方差文件时调用torch.load()且未设置weights_only=True，绕过安全加载包装器，导致反序列化恶意文件时可执行任意代码。
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 peft 0 ~ 0.19.1 -

II. Public POCs for CVE-2026-71281

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 6681 chars
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
100+ AI POC generations per month

III. Intelligence Information for CVE-2026-71281

请登录查看更多情报信息。

Other References for CVE-2026-71281 (1)

IV. Related Vulnerabilities

Same vendor: huggingface
Same weakness: CWE-502

V. Comments for CVE-2026-71281

No comments yet

Leave a comment