CVE-2026-11713: CWE-863 Incorrect Authorization in IBM WebSphere Application Server - Liberty
Description
IBM WebSphere Application Server - Liberty versions 17.0.0.3 through 26.0.0.9 contain a privilege escalation vulnerability when the restConnector-2.0 feature is enabled. This vulnerability is due to incorrect authorization (CWE-863). It has a medium severity with a CVSS score of 5.4. No patch or official fix information is provided in the available data.
CVSS v3.1
Score 5.4medium
Affected software
IBM
WebSphere Application Server - Liberty
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:26.0.0.9:*:*:*:*:*:*:*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-2026-11713 is a privilege escalation vulnerability in IBM WebSphere Application Server - Liberty affecting versions 17.0.0.3 through 26.0.0.9 when the restConnector-2.0 feature is enabled. The issue stems from incorrect authorization controls (CWE-863), allowing a user with limited privileges to escalate their privileges. The vulnerability has a CVSS 3.1 base score of 5.4, indicating medium severity. No vendor advisory or patch information is currently available to confirm remediation status.
Potential Impact
An attacker with some level of privileges can exploit this vulnerability to escalate their privileges within the affected IBM WebSphere Application Server - Liberty environment. The impact includes limited confidentiality and integrity loss, but no availability impact is indicated. This could allow unauthorized actions or access beyond intended permissions.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, consider disabling the restConnector-2.0 feature if feasible or restricting access to trusted users only. Monitor IBM's advisories for updates on patches or official mitigations.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ibm
- Date Reserved
- 2026-06-09T00:11:39.157Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6ace95dd2cdf04f656aad84b
Added to database: 10/13/2026, 20:34:37 UTC
Last enriched: 10/13/2026, 22:34:14 UTC
Last updated: 10/14/2026, 01:08:22 UTC
Views: 5
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