CVE-2021-23463

mediumpriority · track · 37EPSS 0.028 · 86 %ileEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

2.79% (86th) EPSS

CVSS 6.4 · medium

Is it mine?

11 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · osv

EPSS · scored 2026-10-27

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.

cvss

Technical severity, 0–10. One row per scoring source.

9.1

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–critical · 6.4–9.1

v2.06.4mediumAV:N/AC:L/Au:N/C:P/I:N/A:Pprimary · NVD / NIST USexploitability 10 · impact 4.9

v3.19.1criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.2

v3.18.1highAV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:Hsecondary · FSTEC (BDU) RU

v3.18.1highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H/E:Psecondary · ENISA EU

v3.18.1highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:Hsecondary · report@snyk.ioexploitability 2.8 · impact 5.2

v3.18.1highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:Hsecondary · OSV

v3.18.3highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-611USprimaryCWE-611USCWE-611US

affected products (11)

Products and version ranges known to be affected.

n/a com.h2database:h20 → unspecifiedenisa_euvdEU
n/a com.h2database:h2unspecified → 2.0.202enisa_euvdEU
Red Hat Inc. Red Hat Integration Service Registryall versionsfstec_bduRU
Red Hat Inc. Red Hat build of Quarkusall versionsfstec_bduRU
Sonatype Inc. Nexus Repository Manager≤ 3.65.0-02fstec_bduRU
Сообщество свободного программного обеспечения Debian GNU/Linux≤ 10fstec_bduRU
Сообщество свободного программного обеспечения Debian GNU/Linux≤ 11fstec_bduRU
Сообщество свободного программного обеспечения Debian GNU/Linux≤ 12fstec_bduRU
Сообщество свободного программного обеспечения H21.4.198 → 2.0.202fstec_bduRU
h2database h21.4.198 → 2.0.202nvdUScpe:2.3:a:h2database:h2:*:*:*:*:*:*:*:*
Maven com.h2database:h21.4.198 → 2.0.202osvUSpkg:maven/com.h2database/h2

advisories (1)

Vendor and ecosystem advisories describing this.

GHSA-7rpj-hg47-cx62Improper Restriction of XML External Entity Reference in com.h2database:h2.2021-12-16ghsa · osvUS
H2 is an embeddable RDBMS written in Java. 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.

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu osv nvd NVD CVE.org MITRE

published 2021-12-10modified 2026-06-17

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+1515 more

references (18)

External citations — patches, advisories, analysis.

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