CVE-2021-23926

Name: CVE-2021-23926
Creator: NVD / NIST
Published: 2021-01-14T15:15:13.337+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.1/10EPSS 6.27%

Last modified Jun 17, 2026

CVE-2021-23926 is a critical-severity vulnerability rated 9.1/10 on the CVSS scale. 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. EPSS estimates a 6.27% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

9.1/10

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

EPSS Probability

6.27%

92.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-776

Affected Software

Vendor	Product	Versions
Apache	Xmlbeans	<= 2.6.0
Netapp	Oncommand Unified Manager Core Package	All versions
Netapp	Snap Creator Framework	All versions
Netapp	Snapmanager	All versions
Debian	Debian Linux	9.0
Oracle	Middleware Common Libraries And Tools	12.2.1.3.0
Oracle	Middleware Common Libraries And Tools	12.2.1.4.0
Oracle	Peoplesoft Enterprise Peopletools	8.57
Oracle	Peoplesoft Enterprise Peopletools	8.58
Oracle	Peoplesoft Enterprise Peopletools	8.59

References

https://issues.apache.org/jira/browse/XMLBEANS-517Issue Tracking, Vendor Advisory
https://lists.apache.org/thread.html/r2dc5588009dc9f0310b7382269f932cc96cae4c3901b747dda1a7fed%40%3Cjava-dev.axis.apache.org%3E
https://lists.apache.org/thread.html/rbb01d10512098894cd5f22325588197532c64f1c818ea7e4120d40c1%40%3Cjava-dev.axis.apache.org%3E
https://lists.debian.org/debian-lts-announce/2021/06/msg00024.htmlMailing List, Third Party Advisory
https://poi.apache.org/Product, Vendor Advisory
https://security.netapp.com/advisory/ntap-20210513-0004/Third Party Advisory
https://www.oracle.com/security-alerts/cpujul2022.htmlPatch, Third Party Advisory
https://www.oracle.com/security-alerts/cpuoct2021.htmlPatch, Third Party Advisory
https://issues.apache.org/jira/browse/XMLBEANS-517Issue Tracking, Vendor Advisory
https://lists.apache.org/thread.html/r2dc5588009dc9f0310b7382269f932cc96cae4c3901b747dda1a7fed%40%3Cjava-dev.axis.apache.org%3E
https://lists.apache.org/thread.html/rbb01d10512098894cd5f22325588197532c64f1c818ea7e4120d40c1%40%3Cjava-dev.axis.apache.org%3E
https://lists.debian.org/debian-lts-announce/2021/06/msg00024.htmlMailing List, Third Party Advisory
https://poi.apache.org/Product, Vendor Advisory
https://security.netapp.com/advisory/ntap-20210513-0004/Third Party Advisory
https://www.oracle.com/security-alerts/cpujul2022.htmlPatch, Third Party Advisory
https://www.oracle.com/security-alerts/cpuoct2021.htmlPatch, Third Party Advisory

Timeline

Published: Jan 14, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-23926?

How severe is CVE-2021-23926?

CVE-2021-23926 has a CVSS score of 9.1/10 (CRITICAL severity). The EPSS model estimates a 6.27% probability of exploitation in the next 30 days.

How do I fix CVE-2021-23926?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-23926?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST