Description
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.
Published: 2025-03-20
Score: 9.8 Critical
EPSS: 1.0% Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2025-7121 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.
Github GHSA Github GHSA GHSA-mrhh-3ggq-23p2 Horovod Vulnerable to Command Injection
History

Thu, 11 Dec 2025 18:30:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:horovod:horovod:*:*:*:*:*:*:*:*

Wed, 15 Oct 2025 13:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-77

Wed, 15 Oct 2025 13:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-502

Thu, 20 Mar 2025 19:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Thu, 20 Mar 2025 10:15:00 +0000

Type Values Removed Values Added
Description 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.
Title Unauthenticated Remote Code Execution in ElasticRendezvousHandler in horovod/horovod
Weaknesses CWE-77
References
Metrics cvssV3_0

{'score': 9.8, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: @huntr_ai

Published:

Updated: 2025-10-15T12:50:07.797Z

Reserved: 2024-10-19T01:28:35.735Z

Link: CVE-2024-10190

cve-icon Vulnrichment

Updated: 2025-03-20T17:52:51.101Z

cve-icon NVD

Status : Analyzed

Published: 2025-03-20T10:15:15.117

Modified: 2025-12-11T18:19:19.657

Link: CVE-2024-10190

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2025-07-12T22:10:00Z

Weaknesses