PYSEC-2026-351 H2O Deserialization of Untrusted Data Vulnerability

A vulnerability in the h2oai/h2o-3 REST API versions 3.46.0.4 allows unauthenticated remote attackers to execute arbitrary code via deserialization of untrusted data. The vulnerability exists in the endpoints POST /99/ImportSQLTable and POST /3/SaveToHiveTable, where user-controlled JDBC URLs are...

H2O Deserialization of Untrusted Data Vulnerability

A vulnerability in the h2oai/h2o-3 REST API versions 3.46.0.4 allows unauthenticated remote attackers to execute arbitrary code via deserialization of untrusted data. The vulnerability exists in the endpoints POST /99/ImportSQLTable and POST /3/SaveToHiveTable, where user-controlled JDBC URLs are...

PT-2026-53441

H2O.ai H2O through 3.46.0.4 allows attackers to arbitrarily set the JDBC URL, leading to deserialization attacks, file reads, and command execution. Exploitation can occur when an attacker has access to post to the ImportSQLTable URI with a JSON document containing a connection url property with...

PT-2026-53440

A vulnerability in the h2oai/h2o-3 REST API versions 3.46.0.4 allows unauthenticated remote attackers to execute arbitrary code via deserialization of untrusted data. The vulnerability exists in the endpoints POST /99/ImportSQLTable and POST /3/SaveToHiveTable, where user-controlled JDBC URLs are...

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...

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...

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...

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...

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-2025-26414

Malicious code in bioql PyPI...

CVE-2025-10769

A vulnerability has been found in h2oai h2o-3 up to 3.46.08. This affects an unknown function of the file /99/ImportSQLTable of the component H2 JDBC Driver. Such manipulation of the argument connectionurl leads to deserialization. The attack may be launched remotely. The exploit has been disclos...

CVE-2025-10769 h2oai h2o-3 H2 JDBC Driver ImportSQLTable deserialization

A vulnerability has been found in h2oai h2o-3 up to 3.46.08. This affects an unknown function of the file /99/ImportSQLTable of the component H2 JDBC Driver. Such manipulation of the argument connectionurl leads to deserialization. The attack may be launched remotely. The exploit has been disclos...

CVE-2025-10769 h2oai h2o-3 H2 JDBC Driver ImportSQLTable deserialization

A vulnerability has been found in h2oai h2o-3 up to 3.46.08. This affects an unknown function of the file /99/ImportSQLTable of the component H2 JDBC Driver. Such manipulation of the argument connectionurl leads to deserialization. The attack may be launched remotely. The exploit has been disclos...

CVE-2025-10769 h2oai h2o-3 H2 JDBC Driver ImportSQLTable deserialization

A vulnerability has been found in h2oai h2o-3 up to 3.46.08. This affects an unknown function of the file /99/ImportSQLTable of the component H2 JDBC Driver. Such manipulation of the argument connectionurl leads to deserialization. The attack may be launched remotely. The exploit has been disclos...

CVE-2025-10768 h2oai h2o-3 IBMDB2 JDBC Driver ImportSQLTable deserialization

A flaw has been found in h2oai h2o-3 up to 3.46.08. The impacted element is an unknown function of the file /99/ImportSQLTable of the component IBMDB2 JDBC Driver. This manipulation of the argument connectionurl causes deserialization. The attack may be initiated remotely. The exploit has been...

CVE-2025-10768

CVE-2025-10768 affects h2oai h2o-3 up to version 3.46.08. The vulnerability is a deserialization flaw in an unknown function within the IBMDB2 JDBC Driver’s /99/ImportSQLTable, caused by manipulation of the connection_url argument. This enables remote exploitation and an exploit has been publishe...