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

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-08-05 · updated 2026-10-23
Weakness: CWE-502

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.

Affected products

huggingface peft: through 0.19.1

References

https://github.com/huggingface/peft
https://github.com/huggingface/peft/blob/main/src/peft/tuners/lora/corda.py

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