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TI-2021-16151 Aliases CVE-2021-38555GHSA-838r-hvwh-24h8

An XML external entity (XXE) injection vulnerability exists in Apache Any23 StreamUtils.java

Priority MEDIUM 44CWE-611Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub.

Summary

An XML external entity (XXE) injection vulnerability was discovered in the Any23 StreamUtils.java file and is known to affect Any23 versions < 2.5. XML external entity injection (also known as XXE) is a web security vulnerability that allows an attacker to interfere with an application's processing of XML data. It often allows an attacker to view files on the application server filesystem, and to interact with any back-end or external systems that the application itself can access.

Why it matters now

EPSS 0.02752 86th percentileScored 2026-11-07
Fix Fixed Apache Any23 (Apache Software Foundation): 2.5org.apache.any23:apache-any23 (Maven): 2.5

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
ApacheApache Any23Apache Any23 to before 2.52.5Patch availableCNA
—org.apache.any23:apache-any23 (Maven)before 2.52.5Patch availableGHSA-838r-hvwh-24h8
  • Apache Any23 VendorApache Affected Apache Any23 to before 2.5 Fixed in 2.5 Patch available CNA
  • org.apache.any23:apache-any23 (Maven) Vendor— Affected before 2.5 Fixed in 2.5 Patch available GHSA-838r-hvwh-24h8

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:apache:any23:*:*:*:*:*:*:*:*before 2.5VulnerableApache
  • cpe:2.3:a:apache:any23:*:*:*:*:*:*:*:* Versions before 2.5 Vulnerable ·Apache

Remediation

  • Fix · CNA Apache Any23 (Apache Software Foundation) Fixed in 2.5
  • Fix · GHSA-838r-hvwh-24h8 org.apache.any23:apache-any23 (Maven) Fixed in 2.5 Advisory →

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Apache Any23 2.5

    2 records Highest priority Priority MEDIUM 2 MEDIUM

    Other records, highest priority first

    • TI-2021-17330 A Remote Code Execution (RCE) vulnerability exists in Apache Any23 YAMLExtractor.javaPriority MEDIUM 51

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-38555
  2. 2026-10-03 Alias added: GHSA-838r-hvwh-24h8

References

  • TI-2021-17330 A Remote Code Execution (RCE) vulnerability exists in Apache Any23 YAMLExtractor.java CVSS 3.1CRITICAL 9.8
  • TI-2022-09005 An XML external entity (XXE) injection vulnerability exists in the Apache Any23 RDFa XSLTStylesheet extractor CVSS 3.1CRITICAL 9.1
  • TI-2023-16994 Apache Any23: Possible excessive allocation of resources reading input. CVSS 3.1MEDIUM 6.5

Sources