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Vulnerability record · CVE-2021-23926 · published 14 January 2021

CVE-2021-23926: Apache xmlbeans vulnerability

Apache · Xmlbeans

The XML parsers used by XMLBeans up to version 2.6.0 did not set the properties needed to protect the user from malicious XML input. Vulnerabilities include possibilities for XML Entity Expansion attacks. Affects XMLBeans up to and including v2.6.0.

9.1 CVSS 3.1 Critical EPSS 6.2% · top 6.7% CWE-776 · CWE-776
9.1CVSS 3.1 base score, v2 6.4
6.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
7Affected product versions listed by NVD
16References
17 Jun 2026Last modified by NVD

Description

The XML parsers used by XMLBeans up to version 2.6.0 did not set the properties needed to protect the user from malicious XML input. Vulnerabilities include possibilities for XML Entity Expansion attacks. Affects XMLBeans up to and including v2.6.0.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Affected products

7 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://issues.apache.org/jira/browse/XMLBEANS-517 Issue TrackingVendor Advisory
https://lists.apache.org/thread.html/r2dc5588009dc9f0310b7382269f932cc96cae4c3901b747dda1a7fed%40%3Cjava-dev.axis.apache
https://lists.apache.org/thread.html/rbb01d10512098894cd5f22325588197532c64f1c818ea7e4120d40c1%40%3Cjava-dev.axis.apache
https://lists.debian.org/debian-lts-announce/2021/06/msg00024.html Mailing ListThird Party Advisory
https://poi.apache.org/ ProductVendor Advisory
https://security.netapp.com/advisory/ntap-20210513-0004/ Third Party Advisory
https://www.oracle.com/security-alerts/cpujul2022.html PatchThird Party Advisory
https://www.oracle.com/security-alerts/cpuoct2021.html PatchThird Party Advisory
https://issues.apache.org/jira/browse/XMLBEANS-517 Issue TrackingVendor Advisory
https://lists.apache.org/thread.html/r2dc5588009dc9f0310b7382269f932cc96cae4c3901b747dda1a7fed%40%3Cjava-dev.axis.apache
https://lists.apache.org/thread.html/rbb01d10512098894cd5f22325588197532c64f1c818ea7e4120d40c1%40%3Cjava-dev.axis.apache
https://lists.debian.org/debian-lts-announce/2021/06/msg00024.html Mailing ListThird Party Advisory
https://poi.apache.org/ ProductVendor Advisory
https://security.netapp.com/advisory/ntap-20210513-0004/ Third Party Advisory
https://www.oracle.com/security-alerts/cpujul2022.html PatchThird Party Advisory
https://www.oracle.com/security-alerts/cpuoct2021.html PatchThird Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2021-23926), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.