Denial of Service via Invalid Argument in h2oai/h2o-3
Priority HIGH 66CWE-94Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution, Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-94 and CWE-400.
Summary
In h2oai/h2o-3 version 3.46.0, the `run_tool` command in the `rapids` component allows the `main` function of any class under the `water.tools` namespace to be called. One such class, `MojoConvertTool`, crashes the server when invoked with an invalid argument, causing a denial of service.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00794 56th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed h2oai/h2o-3 (h2oai): 3.46.0.6
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| h2oai | h2oai/h2o-3 | before 3.46.0.6 | 3.46.0.6 | Patch available | CNA |
| — | h2o (PyPI) | up to 3.46.0 | — | No fix listed | GHSA-58m3-rcvp-f9ww |
- h2oai/h2o-3 Vendorh2oai Affected before 3.46.0.6 Fixed in 3.46.0.6 Patch available CNA
- h2o (PyPI) Vendor— Affected up to 3.46.0 Fixed in — No fix listed GHSA-58m3-rcvp-f9ww
Remediation
- Fix · CNA h2oai/h2o-3 (h2oai) Fixed in 3.46.0.6
Timeline
- 2026-10-02 Threatist record created from CVE-2024-5979
- 2026-10-03 Alias added: GHSA-58m3-rcvp-f9ww
References
More h2oai H2o vulnerabilities
- TI-2025-05944 Deserialization Vulnerability in h2oai/h2o-3 CVSS 3.0CRITICAL 9.8
- TI-2024-09776 Jdbc Deserialization in h2oai/h2o-3 CVSS 3.0CRITICAL 9.8
- TI-2024-30727 H2O.ai H2O through 3.46.0.4 allows attackers to arbitrarily set the JDBC URL, leading to… CVSS 3.1CRITICAL 9.1
- TI-2026-03424 Remote Code Execution in h2oai/h2o-3 CVSS 3.1CRITICAL 9.8
- TI-2024-07992 Arbitrary File Overwrite in h2oai/h2o-3 CVSS 3.0HIGH 8.2
- TI-2023-06020 External Control of File Name or Path in h2oai/h2o-3 CVSS 3.1HIGH 8.2
Sources
- CVE-2024-5979 · CVE Program
- CVE-2024-5979 · NVD
- FIRST EPSS
- GHSA-58m3-rcvp-f9ww · GitHub Advisory Database · CC BY 4.0
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