# H2O.ai H2O-3 vulnerabilities

Source: https://junglewise.ai/threats/technologies/h2o-3  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 9 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/h2o-3.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 5 vulnerabilities in H2O.ai H2O-3: 0 in the last 7 days and 0 in the last 90 days, 2 of them critical and 0 exploited in the wild. The most recent, CVE-2026-8752, was published on 17 May 2026.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 0
- All time: 5 (2 critical, 0 exploited in the wild)

## About H2O.ai H2O-3

H2O-3 is an open-source machine learning platform supporting distributed algorithms and statistical models.

## Latest H2O.ai H2O-3 vulnerabilities

- [CVE-2026-8752: H2Oai H2O-3 improper access control in Rapids setproperty](https://junglewise.ai/threats/cve-2026-8752-h2oai-h2o-3-improper-access-control-in-rapids-setproperty) (medium, CVSS 5.3, published 17 May 2026)
- [CVE-2026-8751: h2oai h2o-3 insecure deserialization in importBinaryModel](https://junglewise.ai/threats/cve-2026-8751-h2oai-h2o-3-insecure-deserialization-in-importbinarymodel) (high, CVSS 7.3, published 17 May 2026)
- [CVE-2026-8750: h2oai h2o-3 path traversal in ImportFiles API](https://junglewise.ai/threats/cve-2026-8750-h2oai-h2o-3-path-traversal-in-importfiles-api) (medium, CVSS 5.3, published 17 May 2026)
- [CVE-2026-3960: H2O.ai H2O-3 remote code execution in ImportSQLTable API](https://junglewise.ai/threats/cve-2026-3960-h2o-ai-h2o-3-remote-code-execution-in-importsqltable-api) (critical, CVSS 9.8, published 23 Apr 2026)
- [CVE-2023-6569: h2oai h2o-3 arbitrary file overwrite via path traversal](https://junglewise.ai/threats/cve-2023-6569-h2oai-h2o-3-arbitrary-file-overwrite-via-path-traversal) (critical, CVSS 9.3, published 14 Dec 2023)

## Most severe H2O.ai H2O-3 vulnerabilities

- [CVE-2026-3960: H2O.ai H2O-3 remote code execution in ImportSQLTable API](https://junglewise.ai/threats/cve-2026-3960-h2o-ai-h2o-3-remote-code-execution-in-importsqltable-api) (critical, CVSS 9.8, published 23 Apr 2026)
- [CVE-2023-6569: h2oai h2o-3 arbitrary file overwrite via path traversal](https://junglewise.ai/threats/cve-2023-6569-h2oai-h2o-3-arbitrary-file-overwrite-via-path-traversal) (critical, CVSS 9.3, published 14 Dec 2023)
- [CVE-2026-8751: h2oai h2o-3 insecure deserialization in importBinaryModel](https://junglewise.ai/threats/cve-2026-8751-h2oai-h2o-3-insecure-deserialization-in-importbinarymodel) (high, CVSS 7.3, published 17 May 2026)
- [CVE-2026-8752: H2Oai H2O-3 improper access control in Rapids setproperty](https://junglewise.ai/threats/cve-2026-8752-h2oai-h2o-3-improper-access-control-in-rapids-setproperty) (medium, CVSS 5.3, published 17 May 2026)
- [CVE-2026-8750: h2oai h2o-3 path traversal in ImportFiles API](https://junglewise.ai/threats/cve-2026-8750-h2oai-h2o-3-path-traversal-in-importfiles-api) (medium, CVSS 5.3, published 17 May 2026)

## Vulnerabilities per week

Nothing was published in the last eight weeks.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 0 | 0 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 0 | 0 | 0 |
| 21 Sep 2026 | 0 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 0 | 0 | 0 |
| 19 Oct 2026 | 0 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "H2O.ai H2O-3 vulnerabilities", https://junglewise.ai/threats/technologies/h2o-3, 9 November 2026.