# horovod (PyPI) vulnerabilities

3 known vulnerabilities (2 critical, 1 high), with the versions each affects and the releases that fix them.

## At a glance

- Latest release: 0.28.1 (Jun 12, 2023): affected by 2 advisories
- Newest unaffected release: Every release is affected by at least one advisory
- Weekly downloads: 7,168
- Dependents: 12
- Releases: 73 since 0.9.0 (Aug 10, 2017)
- Registry: https://pypi.org/project/horovod/
- Releases read: Nov 8, 2026

## Version timeline

Affected versions per advisory, in version order:

- CVE-2026-31234: 0.9.0 to 0.28.1 (through the newest release)
- CVE-2024-10190: 0.9.0 to 0.28.1 (through the newest release)
- CVE-2022-0315: 0.9.0 to 0.23.0 (0.24.0 is outside it)

## Advisories (3)

### [CVE-2026-31234](https://cve.now/CVE-2026-31234): Horovod thru 0.28.1 contains an insecure deserialization vulnerability (CWE-502) in its KVStore HTTP server component.

- Severity: Critical 9.8
- Published: May 12, 2026
- Affected: through 0.28.1.
- No fix released. The latest release, 0.28.1, is still affected.

### [CVE-2024-10190](https://cve.now/CVE-2024-10190): Unauthenticated Remote Code Execution in ElasticRendezvousHandler in horovod/horovod

- Severity: Critical 9.8
- Published: Mar 20, 2025
- Affected: through 0.28.1.
- No fix released. The latest release, 0.28.1, is still affected.

### [CVE-2022-0315](https://cve.now/CVE-2022-0315): Insecure Temporary File in horovod/horovod

- Severity: High 8.2
- Published: Mar 24, 2022
- Affected: fixed in 0.24.0.
- Fixed in 0.24.0 (released Mar 2, 2022, 22 days before disclosure).
- The latest release, 0.28.1, is not affected.

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