CVE-2021-23463

PoC ×2—

CVSS 3.1

9.1 critical

EPSS

3%p85

Published

Dec 10, 2021 (Dec 10, 2021)

Modified

Jun 17, 2026

Description

The package com.h2database:h2 from 1.4.198 and before 2.0.202 are vulnerable to XML External Entity (XXE) Injection via the org.h2.jdbc.JdbcSQLXML class object, when it receives parsed string data from org.h2.jdbc.JdbcResultSet.getSQLXML() method. If it executes the getSource() method when the parameter is DOMSource.class it will trigger the vulnerability.

Vendors: h2database
Products: h2
Weakness: CWE-611
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

NVD CVE.org GitHub PoCs EPSS (2.7%)

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