A deserialization vulnerability exists in h2oai/h2o-3 versions <= 3.46.0.8, allowing attackers to read arbitrary system files and execute arbitrary code. The vulnerability arises from improper handling of JDBC connection parameters, which can be exploited by bypassing regular expression checks and using double URL encoding. This issue impacts all users of the affected versions.
The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| H2o | H2o | 3.0.0.2 (including) | 3.46.0.8 (including) |