Advisory record · GHSA-qmcv-hh7c-3m56

H2O-3 is Vulnerable to Code Injection

CVSS 5.9 MediumEPSS 0.0094 · 61st percentile

Published by the GitHub Advisory Database at 23 Apr 2026, 12:31 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
ai.h2o:h2o-coreMaven<3.46.0.103.46.0.10
Identifiers
GHSA-qmcv-hh7c-3m56 · CVE-2026-3960 · PYSEC-2026-2180
Weakness (CWE)
CWE-94
Published
23 Apr 2026
Updated
13 Jul 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Maven package ai.h2o:h2o-core versions before 3.46.0.10 are vulnerable. An unauthenticated remote attacker can reach the REST endpoint /99/ImportSQLTable and, by using a PostgreSQL JDBC URL to get around the parameter blacklist, execute arbitrary code on the server with the privileges of the H2O-3 process. Upgrade to version 3.46.0.10, which fixes the issue.

Written 2 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
5.9 Medium 3.0 CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H CNA (@huntr_ai)
  • CISA KEV Not listed.
  • EPSS 0.0094, the 61st percentile, on 10 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:19 UTC First seen by agentprime
  2. 31 Oct 2026, 14:19 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.