CVE-2021-23463

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.

• CWE-611

• https://github.com/h2database/h2database/commit/d83285fd2e48fb075780ee95badee6f5a15ea7f8%23diff-008c2e4462609982199cd83e7cf6f1d6b41296b516783f6752c44b9f15dc7bc3Broken Link
• https://github.com/h2database/h2database/issues/3195Exploit, Issue Tracking, Patch, Third Party Advisory
• https://github.com/h2database/h2database/pull/3199Issue Tracking, Patch, Third Party Advisory
• https://security.netapp.com/advisory/ntap-20230818-0010/
• https://snyk.io/vuln/SNYK-JAVA-COMH2DATABASE-1769238Exploit, Patch, Third Party Advisory
• https://www.oracle.com/security-alerts/cpuapr2022.htmlNot Applicable
• https://github.com/h2database/h2database/commit/d83285fd2e48fb075780ee95badee6f5a15ea7f8%23diff-008c2e4462609982199cd83e7cf6f1d6b41296b516783f6752c44b9f15dc7bc3Broken Link
• https://github.com/h2database/h2database/issues/3195Exploit, Issue Tracking, Patch, Third Party Advisory
• https://github.com/h2database/h2database/pull/3199Issue Tracking, Patch, Third Party Advisory
• https://security.netapp.com/advisory/ntap-20230818-0010/
• https://snyk.io/vuln/SNYK-JAVA-COMH2DATABASE-1769238Exploit, Patch, Third Party Advisory
• https://www.oracle.com/security-alerts/cpuapr2022.htmlNot Applicable

Published

Dec 10, 2021

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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