CVE-2024-31580 PyTorch heap buffer overflow vulnerability

Medium 4.0 Published 17 Apr 2024 Updated 28 Mar 2025

Attackers can cause a Denial of Service in PyTorch via a heap buffer overflow triggered by crafted input.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: Not needed
Fix: Available

What is CVE-2024-31580?

CVE-2024-31580 is a medium-severity memory corruption vulnerability in n/a, published on 17 Apr 2024. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

PyTorch before v2.2.0 was discovered to contain a heap buffer overflow vulnerability in the component /runtime/vararg_functions.cpp. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.

Weakness: CWE-122

Which versions are affected by CVE-2024-31580?

5 open source packages ship an affected version, including torch, pytorch and torch-npu. It affects 1 product.

Package	Affected	Fixed in
`torch` PyPI	All versions	`2.2.0`
`torch` PyPI	All versions	`2.2.0`
`torch` PyPI	All versions	`2.2.0`
`pytorch` Bitnami	All versions	`2.2.1`
`torch-npu` PyPI	All versions	`2.2.0`

Products include Linuxfoundation Pytorch.

How do I fix CVE-2024-31580?

Upgrade torch to 2.2.0 or later.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2024-31580 being exploited?

There is no known exploitation of CVE-2024-31580 in the wild and no public exploit code.

Sources

Also known as AZL-39930, BIT-pytorch-2024-31580, DEBIAN-CVE-2024-31580, GHSA-5pcm-hx3q-hm94, PYSEC-2024-252, PYSEC-2024-328 and 1 more.