pypi package report

Is horovod safe?

3 known vulnerabilities, worst severity CRITICAL.

// reach

0 direct dependencies

none carry a known advisory

    2 packages depend on it

    an advisory here reaches each of them

    Create a free accountfor every dependency path, dependent and what to upgrade
    // ai model usage

    No published models are known to use this package.

    cvss
    9.8
    critical

    CVSS v3.1 base score out of 10

    epss
    0.69%
    medium

    chance of exploitation in 30 days, 53rd percentile of all CVEs

    xyz score
    4.0
    medium

    CyberXYZ composite out of 10

    fig. 01 — GHSA-mf8f-x4r3-jm8c, the advisory selected below

    // 3 advisories

    GHSA-mf8f-x4r3-jm8c

    CRITICALGitHub ratingCVE-2026-31234

    Horovod thru 0.28.1 contains an insecure deserialization vulnerability (CWE-502) in its KVStore HTTP server component. The KVStore server, used for distributed task coordination, lacks authentication and authorization controls, allowing any remote attacker to write arbitrary data via HTTP PUT requests. When a Horovod worker reads data from the KVStore (via HTTP GET), it deserializes the data using cloudpickle.loads() without verifying its source or integrity. An attacker can exploit this by sending a malicious pickle payload to the server before the legitimate data is written, causing the victim worker to deserialize and execute arbitrary code, leading to remote code execution.

    // cvss v3.1 vector

    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

    Attack vector
    Network
    Attack complexity
    Low
    Privileges required
    None
    User interaction
    None
    Scope
    Unchanged
    Confidentiality
    High
    Integrity
    High
    Availability
    High

    Checked 2026-11-07 at 03:16 UTC. The most recent advisory here was published 2026-05-12. Updated continuously from NVD, GHSA, OSV and CNA feeds.

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