SCA: security update for ai.h2o:h2o-core, h2o (GHSA-5w3j-gwgh-4rfv)

critical Tenable Cloud Security Plugin ID 477671

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

- 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. (CVE-2025-6544)

Solution

There is no known solution at this time.

See Also

https://github.com/advisories/GHSA-5w3j-gwgh-4rfv

Plugin Details

Severity: Critical

ID: 477671

Version: Revision 1.1

Type: Local

Family: SCA Checks

Published: 10/27/2026

Updated: 10/27/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 57.62

Vendor

Vendor Severity: Critical

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2025-6544

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 9/22/2025

Vulnerability Publication Date: 9/21/2025

Reference Information

CVE: CVE-2025-6544

cwe: CWE-502