How severe is CVE-2022-0315?

CVE-2022-0315 has a CVSS score of 8.2/10, rated HIGH. Immediate patching is strongly recommended.

Which packages are affected by CVE-2022-0315?

CVE-2022-0315 affects the following packages: horovod (PyPI). Ecosystems affected: PyPI.

How do I fix CVE-2022-0315?

Update horovod to 0.24.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2022-0315 is resolved across your whole dependency graph.

How do I detect CVE-2022-0315 in my PyPI dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for horovod, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

How do I mitigate CVE-2022-0315 if there is no patch (or I can't update yet)?

If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Is CVE-2022-0315 actively exploited in the wild?

No public exploit code has been indexed for CVE-2022-0315 yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

What is the EPSS score for CVE-2022-0315?

CVE-2022-0315 has an EPSS (Exploit Prediction Scoring System) score of 1.0%, placing it in the 62th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

What type of vulnerability is CVE-2022-0315?

CVE-2022-0315 is classified as CWE-377 (CWE-377), CWE-668 (CWE-668). These weakness types describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

When was CVE-2022-0315 published, and has it been updated?

CVE-2022-0315 was published on March 24, 2022 and was last updated on October 28, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

🐍

🐍 PyPI

Not in CISA KEV

HIGH severity

CVE-2022-0315 — horovod

HIGHFix: horovod/horovod@b96ecae

CVE-2022-0315 is a high-severity (CVSS 8.2) CWE-377 vulnerability in horovod. A fix is available for horovod — see the affected versions and patch details below.

Insecure Temporary File in horovod/horovod

Also known asGHSA-47wv-vhj2-g66mPYSEC-2022-175

Published

Mar 24, 2022

Updated

Oct 28, 2026

Affected

1 pkg

Patched

1 / 1

Exploits

None indexed

Exploitation data as of Nov 11, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗

1.0%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs62th percentile — riskier than 62% of all scored CVEsHighest risk

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected

🐍horovod

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects PyPI packages — download data is not available via public APIs for these ecosystems.

Description

Impact

The insecure tempfile.mktemp() is used when Horovod is run in an LSF job with jsrun. In that situation, a jsrun rank file is created with mktemp, which could be hijacked by another process to read or manipulate the content.

This issue does not impact the use of MPI, Gloo, Spark or Ray.

Patches

The problem has been fixed in b96ecae4.

Workarounds

The rank file is not created when binding_args are provided in the Settings instance.

References

Please see https://github.com/horovod/horovod/pull/3358 for details.

For more information

If you have any questions or comments about this advisory:

Open an issue in https://github.com/horovod/horovod

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
🐍PyPI	`horovod`	all versions	0.24.0`pip install --upgrade 'horovod==0.24.0'`

Affected Products

1 product · 1 configurations

Application

horovodhorovod

< 0.24.0

range

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for horovod, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update horovod to 0.24.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2022-0315 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Frequently Asked Questions

### Impact The insecure `tempfile.mktemp()` is used when Horovod is run in an LSF job with `jsrun`. In that situation, a jsrun rank file is created with `mktemp`, which could be hijacked by another process to read or manipulate the content. This issue does not impact the use of MPI, Gloo, Spark or Ray. ### Patches The problem has been fixed in [b96ecae4](https://github.com/horovod/horovod/commit/b96ecae4dc69fc0a83c7c2d3f1dde600c20a1b41). ### Workarounds The rank file is not created when `binding_args` are provided in the `Settings` instance. ### References Please see https://github.com/hor