PT-2026-53441 · Pypi · H2O

Published 2026-06-29 · Updated 2026-06-29

OSV

CVSS v3.1

9.1

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

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 any typical JDBC Connection URL attack payload such as one that uses queryInterceptors.

Fix

Related Identifiers

PYSEC-2026-352

Affected Products

H2O

References · 11

• https://osv.dev/vulnerability/PYSEC-2026-352 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2024-45758 · Security Note
• https://github.com/h2oai/h2o-3/issues/16622 · Note
• https://github.com/h2oai/h2o-3/pull/16624 · Note
• https://github.com/h2oai/h2o-3/commit/f714edd6b8429c7a7211b779b6ec108a95b7382d · Note
• https://github.com/h2oai/h2o-3/issues/16425 · Note
• https://github.com/h2oai/h2o-3 · Note
• https://pypi.org/project/h2o · Note
• https://gist.github.com/AfterSnows/c24ca3c26dc89ab797e610e92a6a9acb · Note
• https://spear-shield.notion.site/Unauthenticated-Remote-Code-Execution-via-Unrestricted-JDBC-Connection-87a958a4874044199cbb86422d1f6068 · Note
• https://github.com/advisories/GHSA-hrmc-jmp7-mpm2 · Note