CVE-2024-10190: Horovod versions up to and including v0.28.1 are vulnerable to unauthenticated remote code execution

Q: How do I fix CVE-2024-10190?

horovod: upgrade to newer than 0.28.1. Exact commands for each OS are on this page.

Q: Is CVE-2024-10190 being exploited?

CVE-2024-10190 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2024-10190 affect?

CVE-2024-10190 affects horovod. Severity is critical (CVSS 9.8). 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`. Sp

Q: How urgent is CVE-2024-10190?

Priority 61/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

This week

CRITICAL 9.8REMOTEUPGRADE

CVE-2024-10190 is a critical-severity flaw (CVSS 9.8) affecting horovod. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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 obj

Why this priority

Critical severity
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.1% (top 34%)
CISA exploited list	No
Weakness	CWE-502
Published	2025-03-20
Last modified	2026-06-17

Publisher (CNA): huntr.dev · Vendor: horovod

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-03-20 10:15 UTCPublished CVE record published
2026-06-17 06:55 UTCUpdated Record last modified

horovod horovod UPGRADE

Affected: <= 0.28.1

Fixed in: newer than 0.28.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy horovod || rpm -q horovod || horovod --version

2. UPGRADE to newer than 0.28.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade horovod

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade horovod

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2024-10190?

horovod: upgrade to newer than 0.28.1. Exact commands for each OS are on this page.

Is CVE-2024-10190 being exploited?

CVE-2024-10190 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2024-10190 affect?

CVE-2024-10190 affects horovod. Severity is critical (CVSS 9.8). 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`. Sp

How urgent is CVE-2024-10190?

Priority 61/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

References

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