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CVE-2026-3960

Remote Code Execution in h2oai/h2o-3 PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
h2oai / h2oai/h2o-3affected unspecified before 3.46.0.10

CWE

CWE-94

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.