XXE in Apache Xmlbeans
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 includi…
EPSS: 0.063 (92.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H.
Affected products
- Apache Xmlbeans
- Apache Software Foundation Xmlbeans — versions Apache XMLBeans
- Netapp Oncommand_unified_manager_core_package
- Netapp Snap_creator_framework
- Netapp Snapmanager
- Oracle Middleware_common_libraries_and_tools — versions 12.2.1.3.0, 12.2.1.4.0
- Oracle Peoplesoft_enterprise_peopletools — versions 8.57, 8.58, 8.59
- Debian Debian_linux — versions 9.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@apache.org (Product, x_refsource_MISC, Vendor Advisory)
- security@apache.org (x_refsource_MISC, Issue Tracking, Vendor Advisory)
- security@apache.org (mailing-list, x_refsource_MLIST)
- security@apache.org (mailing-list, x_refsource_MLIST)
- security@apache.org (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
- security@apache.org (Patch, Third Party Advisory, x_refsource_MISC)
- security@apache.org (x_refsource_CONFIRM, Third Party Advisory)
- security@apache.org (Patch, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-23926?
- CVE-2021-23926 is a critical-severity vulnerability in Apache Xmlbeans, classified under Improper Restriction of Recursive Entity References in DTDs (XML Entity Expansion). CVSS score: 9.1/10. Published 2021-01-14.
- How severe is CVE-2021-23926?
- Critical severity. CVSS v3 base score is 9.1 out of 10.
- Is CVE-2021-23926 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.