CVE-2026-18499: CWE-285 Improper Authorization in IBM WebSphere Application Server - Liberty
IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.8 is vulnerable to a privilege escalation when using Liberty collectives.
AI Analysis
Technical Summary
CVE-2026-18499 describes an improper authorization vulnerability in IBM WebSphere Application Server - Liberty, affecting versions 17.0.0.3 through 26.0.0.8. This flaw allows a user with limited privileges to escalate their privileges within the Liberty collectives environment. The vulnerability is rated high severity with a CVSS 3.1 score of 8.1, indicating network attack vector, low attack complexity, and no user interaction required, with high confidentiality and integrity impacts but no availability impact. No vendor advisory or patch information is currently available.
Potential Impact
Successful exploitation of this vulnerability could allow an attacker with some privileges to escalate their privileges, potentially gaining unauthorized access to sensitive information or performing unauthorized actions within the affected WebSphere Liberty environment. The impact affects confidentiality and integrity but does not affect availability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, monitor IBM's security advisories for updates. No specific mitigation or workaround is currently documented.
CVE-2026-18499: CWE-285 Improper Authorization in IBM WebSphere Application Server - Liberty
Description
IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.8 is vulnerable to a privilege escalation when using Liberty collectives.
CVSS v3.1
Score 8.1high
Affected software
pkg:maven/com.ibm.websphere/websphere-application-server-libertycpe:2.3:a:ibm:websphere_application_server_liberty:17.0.0.3:*:*:*:*:*:*:*cpe:2.3:a:ibm:websphere_application_server_liberty:26.0.0.8:*:*:*:*:*:*:*Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-18499 describes an improper authorization vulnerability in IBM WebSphere Application Server - Liberty, affecting versions 17.0.0.3 through 26.0.0.8. This flaw allows a user with limited privileges to escalate their privileges within the Liberty collectives environment. The vulnerability is rated high severity with a CVSS 3.1 score of 8.1, indicating network attack vector, low attack complexity, and no user interaction required, with high confidentiality and integrity impacts but no availability impact. No vendor advisory or patch information is currently available.
Potential Impact
Successful exploitation of this vulnerability could allow an attacker with some privileges to escalate their privileges, potentially gaining unauthorized access to sensitive information or performing unauthorized actions within the affected WebSphere Liberty environment. The impact affects confidentiality and integrity but does not affect availability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, monitor IBM's security advisories for updates. No specific mitigation or workaround is currently documented.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ibm
- Date Reserved
- 2026-07-31T16:05:24.890Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a7ca247bf8831d539d7ad46
Added to database: 08/12/2026, 16:41:43 UTC
Last enriched: 08/12/2026, 16:56:17 UTC
Last updated: 08/12/2026, 17:28:55 UTC
Views: 45
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