CVE-2026-5516: Vulnerability in IBM WebSphere Application Server - Liberty
IBM WebSphere Application Server - Liberty 22.0.0.11 through 26.0.0.5 IBM WebSphere Application Server Liberty could allow a remote attacker to bypass security under limited conditions by exploiting a specific timing window.
AI Analysis
Technical Summary
IBM WebSphere Application Server - Liberty versions 22.0.0.11 through 26.0.0.5 contain a vulnerability (CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization) that could allow a remote attacker with high privileges to bypass security protections by exploiting a timing window. The CVSS 3.1 base score is 4.4, reflecting network attack vector, high attack complexity, required privileges, no user interaction, unchanged scope, high confidentiality impact, and no impact on integrity or availability. The vulnerability is published but no patch or official remediation level has been provided by IBM as of the publication date.
Potential Impact
An attacker with high privileges on the network could exploit this timing window vulnerability to bypass security controls, potentially leading to unauthorized access to confidential information. The vulnerability does not affect data integrity or availability. There are no known active exploits in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the IBM vendor advisory for current remediation guidance. Since no official fix or temporary mitigation is currently documented, monitor IBM's security advisories for updates. Until a patch is available, limit exposure by restricting network access to the affected WebSphere Application Server instances and ensure that only trusted users have high privileges.
CVE-2026-5516: Vulnerability in IBM WebSphere Application Server - Liberty
Description
IBM WebSphere Application Server - Liberty 22.0.0.11 through 26.0.0.5 IBM WebSphere Application Server Liberty could allow a remote attacker to bypass security under limited conditions by exploiting a specific timing window.
CVSS v3.1
Score 4.4medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
IBM WebSphere Application Server - Liberty versions 22.0.0.11 through 26.0.0.5 contain a vulnerability (CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization) that could allow a remote attacker with high privileges to bypass security protections by exploiting a timing window. The CVSS 3.1 base score is 4.4, reflecting network attack vector, high attack complexity, required privileges, no user interaction, unchanged scope, high confidentiality impact, and no impact on integrity or availability. The vulnerability is published but no patch or official remediation level has been provided by IBM as of the publication date.
Potential Impact
An attacker with high privileges on the network could exploit this timing window vulnerability to bypass security controls, potentially leading to unauthorized access to confidential information. The vulnerability does not affect data integrity or availability. There are no known active exploits in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the IBM vendor advisory for current remediation guidance. Since no official fix or temporary mitigation is currently documented, monitor IBM's security advisories for updates. Until a patch is available, limit exposure by restricting network access to the affected WebSphere Application Server instances and ensure that only trusted users have high privileges.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ibm
- Date Reserved
- 2026-04-03T21:59:13.972Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a16f9d5e29bf47b50c0e95c
Added to database: 05/27/2026, 14:04:05 UTC
Last enriched: 06/03/2026, 20:12:31 UTC
Last updated: 07/31/2026, 19:22:59 UTC
Views: 33
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