Arbitrary Code Injection

Overview Affected versions of this package are vulnerable to Arbitrary Code Injection through the SQLManager.validateJdbcUrl logic in SQLManager. An attacker can trigger unsafe JDBC connection handling by supplying a PostgreSQL URL with dangerous parameters such as socketFactory, sslfactory, or...

GHSA-QMCV-HH7C-3M56 H2O-3 is Vulnerable to Code Injection

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...

EUVD-2026-25205

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...

CVE-2026-3960

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...

PYSEC-2026-2180

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...

CVE-2026-3960

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...

CVE-2026-3960

CVE-2026-3960 is a remote code execution in H2O-3 prior to 3.46.0.10 via the unauthenticated REST endpoint /99/ImportSQLTable. The issue stems from a MySQL-focused parameter blacklist that can be bypassed by switching the JDBC URL to a PostgreSQL URL (e.g., using socketFactory/socketFactoryArg pa...

CVE-2026-3960 Remote Code Execution in h2oai/h2o-3

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...

CVE-2026-3960 Remote Code Execution in h2oai/h2o-3

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...

CVE-2026-3960 Remote Code Execution in h2oai/h2o-3

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...

H2O 代码注入漏洞

H2O is an open-source memory platform for distributed, scalable machine learning developed by H2O.ai. Versions of H2O 3.46.0.9 and earlier contained a code injection vulnerability. This vulnerability stemmed from insufficient security controls in the parameter blacklist mechanism. Attackers could...

H2O-3 is Vulnerable to Code Injection

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...

PT-2026-34648

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...

Deserialization of Untrusted Data

Overview Affected versions of this package are vulnerable to Deserialization of Untrusted Data due to vulnerable PostgreSQL JDBC connection parameters not being blocked by default. An attacker can exploit this vulnerability by injecting dangerous JDBC parameters such as socketFactory, sslfactory,...

CVE-2024-5986

A vulnerability in h2oai/h2o-3 version 3.46.0.1 allows remote attackers to write arbitrary data to any file on the server. This is achieved by exploiting the /3/Parse endpoint to inject attacker-controlled data as the header of an empty file, which is then exported using the...

H2O has an External Control of File Name or Path vulnerability

A vulnerability in h2oai/h2o-3 version 3.46.0.1 allows remote attackers to write arbitrary data to any file on the server. This is achieved by exploiting the /3/Parse endpoint to inject attacker-controlled data as the header of an empty file, which is then exported using the...

External Control of File Name or Path

Overview Affected versions of this package are vulnerable to External Control of File Name or Path via the /3/Parse and /3/Frames/framename/export endpoints. An attacker can overwrite arbitrary files on the server, including sensitive files such as private SSH keys or script files, by injecting...

GHSA-WJ3H-WX8G-X699 H2O has an External Control of File Name or Path vulnerability

A vulnerability in h2oai/h2o-3 version 3.46.0.1 allows remote attackers to write arbitrary data to any file on the server. This is achieved by exploiting the /3/Parse endpoint to inject attacker-controlled data as the header of an empty file, which is then exported using the...

CVE-2024-5986

A vulnerability in h2oai/h2o-3 version 3.46.0.1 allows remote attackers to write arbitrary data to any file on the server. This is achieved by exploiting the /3/Parse endpoint to inject attacker-controlled data as the header of an empty file, which is then exported using the...

CVE-2024-5986

A vulnerability in h2oai/h2o-3 version 3.46.0.1 allows remote attackers to write arbitrary data to any file on the server. This is achieved by exploiting the /3/Parse endpoint to inject attacker-controlled data as the header of an empty file, which is then exported using the...