Description
A critical remote code execution vulnerability exists in the unauthenticated REST API endpoint /99/ImportSQLTable in H2O-3 version 3.46.0.9 and prior. The vulnerability arises due to insufficient security controls in the parameter blacklist mechanism, which only targets MySQL JDBC driver-specific dangerous parameters. An attacker can bypass these controls by switching the JDBC URL protocol to jdbc:postgresql: and exploiting PostgreSQL JDBC driver-specific parameters such as socketFactory and socketFactoryArg. This allows unauthenticated attackers to execute arbitrary code on the H2O-3 server with the privileges of the H2O-3 process. The issue is resolved in version 3.46.0.10.
No analysis available yet.
Remediation
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Tracking
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References
History
Thu, 23 Apr 2026 13:15:00 +0000
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ssvc
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Thu, 23 Apr 2026 10:00:00 +0000
| Type | Values Removed | Values Added |
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| Description | A critical remote code execution vulnerability exists in the unauthenticated REST API endpoint /99/ImportSQLTable in H2O-3 version 3.46.0.9 and prior. The vulnerability arises due to insufficient security controls in the parameter blacklist mechanism, which only targets MySQL JDBC driver-specific dangerous parameters. An attacker can bypass these controls by switching the JDBC URL protocol to jdbc:postgresql: and exploiting PostgreSQL JDBC driver-specific parameters such as socketFactory and socketFactoryArg. This allows unauthenticated attackers to execute arbitrary code on the H2O-3 server with the privileges of the H2O-3 process. The issue is resolved in version 3.46.0.10. | |
| Title | Remote Code Execution in h2oai/h2o-3 | |
| Weaknesses | CWE-94 | |
| References |
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| Metrics |
cvssV3_0
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Subscriptions
No data.
Status: PUBLISHED
Assigner: @huntr_ai
Published:
Updated: 2026-04-23T12:29:32.439Z
Reserved: 2026-03-11T12:52:45.232Z
Link: CVE-2026-3960
Updated: 2026-04-23T12:27:32.967Z
Status : Received
Published: 2026-04-23T10:16:17.813
Modified: 2026-04-23T10:16:17.813
Link: CVE-2026-3960
No data.
OpenCVE Enrichment
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Weaknesses