Exploitation Summary
EIP tracks 1 public exploit for CVE-2025-50461. PoCs published by Anchor0221.
AI-analyzed exploit summary This repository contains a functional proof-of-concept exploit for CVE-2025-50461, demonstrating arbitrary code execution via unsafe deserialization in PyTorch's `torch.load()` function within the Verl model_merger.py script. The PoC includes a malicious pickle payload that executes a command upon deserialization.
Description
A deserialization vulnerability exists in Volcengine's verl 3.0.0, specifically in the scripts/model_merger.py script when using the "fsdp" backend. The script calls torch.load() with weights_only=False on user-supplied .pt files, allowing attackers to execute arbitrary code if a maliciously crafted model file is loaded. An attacker can exploit this by convincing a victim to download and place a malicious model file in a local directory with a specific filename pattern. This vulnerability may lead to arbitrary code execution with the privileges of the user running the script.
Exploits (1)
This repository contains a functional proof-of-concept exploit for CVE-2025-50461, demonstrating arbitrary code execution via unsafe deserialization in PyTorch's `torch.load()` function within the Verl model_merger.py script. The PoC includes a malicious pickle payload that executes a command upon deserialization.
References (5)
Scores
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N