SB2026021948 - Multiple vulnerabilities in IBM Library Support for Struts



SB2026021948 - Multiple vulnerabilities in IBM Library Support for Struts

Published: February 19, 2026

Security Bulletin ID SB2026021948
Severity
Medium
Patch available
YES
Number of vulnerabilities 8
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 88% Low 13%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 8 secuirty vulnerabilities.


1) XML External Entity injection (CVE-ID: CVE-2025-68493)

The vulnerability allows a remote user to gain access to sensitive information.

The vulnerability exists due to insufficient validation of user-supplied XML input in the XWork component. A remote user can pass a specially crafted XML code to the affected application and view contents of arbitrary files on the system or initiate requests to external systems.

Successful exploitation of the vulnerability may allow an attacker to view contents of arbitrary file on the server or perform network scanning of internal and external infrastructure.


2) Resource exhaustion (CVE-ID: CVE-2025-64775)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to application does not properly control consumption of internal resources when handling multipart requests. A remote attacker can consume all disk space on the system and perform a denial of service (DoS) attack.


3) Resource exhaustion (CVE-ID: CVE-2025-66675)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to application does not properly control consumption of internal resources when handling multipart requests. A remote attacker can consume all available disk space and perform a denial of service (DoS) attack.


4) Allocation of Resources Without Limits or Throttling (CVE-ID: CVE-2023-24998)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to Apache Commons FileUpload does not limit the number of request parts. A remote attacker can initiate a series of uploads and perform a denial of service (DoS) attack.


5) Resource exhaustion (CVE-ID: CVE-2025-48976)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to Apache Commons FileUpload provided a hard-coded limit of 10kB for the size of the headers associated with a multipart request. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.


6) Path traversal (CVE-ID: CVE-2021-29425)

The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error within the FileNameUtils.normalize method when processing directory traversal sequences, such as "//../foo", or "\..foo". A remote attacker can send a specially crafted request and verify files availability in the parent folder.


7) Resource exhaustion (CVE-ID: CVE-2024-47554)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to application does not properly control consumption of internal resources when handling untrusted input passed to the org.apache.commons.io.input.XmlStreamReader class. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.


8) Improper access control (CVE-ID: CVE-2025-48734)

The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions to enum properties. If an application using Commons BeanUtils passes property paths from an external source directly to the getProperty() method of PropertyUtilsBean, an attacker can access the enum’s class loader via the “declaredClass” property available on all Java “enum” objects. Accessing the enum’s “declaredClass” allows remote attackers to access the ClassLoader and execute arbitrary code. The same issue exists with PropertyUtilsBean.getNestedProperty().


Remediation

Install update from vendor's website.