EUVD-2026-30699

A weakness has been identified in h2oai h2o-3 up to 7402. This vulnerability affects the function exec of the file h2o-core/src/main/java/water/rapids/ast/prims/misc/AstSetProperty.java of the component Rapids setproperty Primitive Handler. Executing a manipulation can lead to improper access...

CVE-2026-8751

A security flaw has been discovered in h2oai h2o-3 up to 7402. This affects the function importBinaryModel of the file h2o-core/src/main/java/hex/Model.java of the component JAR Handler. Performing a manipulation results in deserialization. The attack is possible to be carried out remotely. The...

CVE-2026-8750

A vulnerability was identified in h2oai h2o-3 up to 7402. Affected by this issue is the function importFiles of the file h2o-core/src/main/java/water/persist/PersistNFS.java of the component ImportFile API. Such manipulation leads to information disclosure. The attack can be executed remotely. Th...

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-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-2025-10768

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-2025-6507

A vulnerability in the h2oai/h2o-3 repository allows attackers to exploit deserialization of untrusted data, potentially leading to arbitrary code execution and reading of system files. This issue affects the latest master branch version 3.47.0.99999. The vulnerability arises from the ability to...

PT-2024-36531 · H2O.Ai · H2O-3

Name of the Vulnerable Software and Affected Versions: h2oai/h2o-3 version 3.40.0.4 Description: The issue is caused by an arbitrary system path lookup feature, allowing any remote user to view full paths in the entire file system where h2o-3 is hosted. Specifically, the problem resides in the...