CVE-2021-23926
CRITICALCVSS 9.1/10EPSS 6.27%
Last modified
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/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Weakness Enumeration
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.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.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
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-23926?
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.
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.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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