CVE-2026-14909: CWE-209 Generation of Error Message Containing Sensitive Information in IBM WebSphere Application Server - Liberty
Description
IBM WebSphere Application Server - Liberty versions 17.0.0.3 through 26.0.0.9 contain an information disclosure vulnerability (CWE-209) when the restConnector-2.0 feature is enabled. This flaw allows an authenticated attacker to obtain sensitive information through error messages. The vulnerability has a CVSS 3.1 base score of 6.5, indicating a medium severity level. No official patch or remediation details are provided in the available data.
CVSS v3.1
Score 6.5medium
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-2026-14909 is an information disclosure vulnerability in IBM WebSphere Application Server - Liberty affecting versions 17.0.0.3 through 26.0.0.9. The vulnerability arises from the generation of error messages containing sensitive information when the restConnector-2.0 component is enabled. An attacker with authentication privileges can exploit this flaw to gain access to sensitive data disclosed in error messages. The CVSS 3.1 vector indicates the attack requires network access with low complexity and privileges, no user interaction, and impacts confidentiality but not integrity or availability.
Potential Impact
An authenticated attacker can obtain sensitive information from error messages generated by the restConnector-2.0 feature. This disclosure could aid further attacks or compromise confidentiality of the system. There is no indication of impact on integrity or availability.
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 to prevent exposure of sensitive information in error messages.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ibm
- Date Reserved
- 2026-07-06T21:48:19.070Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6ace95df2cdf04f656aad850
Added to database: 10/13/2026, 20:34:39 UTC
Last enriched: 10/13/2026, 22:34:08 UTC
Last updated: 10/14/2026, 01:08:20 UTC
Views: 6
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