---
id: CVE-2024-10190
aliases:
  - GHSA-mrhh-3ggq-23p2
  - PYSEC-2026-355
title: Horovod Vulnerable to Command Injection
summary: Horovod Vulnerable to Command Injection
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
vendor: horovod
product: horovod
ecosystem: pip
affected:
  - horovod <= 0.28.1
published: '2025-03-20'
updated: '2026-10-27'
sourceUpdated: '2026-10-27T17:30:37.969317003Z'
source: OSV
sourceUrl: 'https://osv.dev/vulnerability/GHSA-mrhh-3ggq-23p2'
references:
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2024-10190'
  - url: 'https://github.com/horovod/horovod'
  - url: >-
      https://github.com/pypa/advisory-database/tree/main/vulns/horovod/PYSEC-2026-355.yaml
  - url: 'https://huntr.com/bounties/3e398d1f-70c2-4e05-ae22-f5d66b19a754'
  - url: 'https://pypi.org/project/horovod'
  - url: 'https://github.com/advisories/GHSA-mrhh-3ggq-23p2'
tags:
  - osv
  - pip
  - ghsa
epss: 0.01124
epssPercentile: 0.66091
cwe:
  - CWE-77
  - CWE-502
ingestedAt: '2026-10-27T17:33:23.770Z'
---

## Overview

Horovod versions up to and including v0.28.1 are vulnerable to unauthenticated remote code execution. The vulnerability is due to improper handling of base64-encoded data in the `ElasticRendezvousHandler`, a subclass of `KVStoreHandler`. Specifically, the `_put_value` method in `ElasticRendezvousHandler` calls `codec.loads_base64(value)`, which eventually invokes `cloudpickle.loads(decoded)`. This allows an attacker to send a malicious pickle object via a PUT request, leading to arbitrary code execution on the server.

## Affected packages

- `horovod <= 0.28.1`

## Remediation

Refer to the advisory for the patched release.