# CVE-2026-103320: IBM WebSphere Application Server Liberty information disclosure

Source: https://junglewise.ai/threats/cve-2026-103320-ibm-websphere-application-server-liberty-17-0-0-3-through-26-0-0  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-08. Updated: 2026-11-08  
License: CC BY 4.0 with a link back

CVE-2026-103320 · Severity: medium · CVSS 4.3 · Published 2026-11-08

IBM WebSphere Application Server Liberty is a Java application server used to run enterprise business applications. An authenticated user with the Reader role can access sensitive information they should not be able to view. This could lead to unauthorized disclosure of confidential data stored or processed by applications running on the server.

Technologies: [IBM WebSphere Application Server Liberty](https://junglewise.ai/threats/technologies/websphere-application-server-liberty). Vendors: [IBM](https://junglewise.ai/threats/vendors/ibm).

## Quick answers

**Is CVE-2026-103320 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-103320 being exploited in the wild.

**How severe is CVE-2026-103320?** Medium severity, with a CVSS score of 4.3, published 8 November 2026.

**Which products and versions are affected?** IBM WebSphere Application Server Liberty 17.0.0.3 through 26.0.0.10.

**Is there a fix for CVE-2026-103320?** Yes: fixed in WebSphere Application Server Liberty 26.0.0.11 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-103320 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-103320?** Check whether you run IBM WebSphere Application Server Liberty at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- Fixed in WebSphere Application Server Liberty 26.0.0.11 or later

## Technical details

An information disclosure vulnerability (CWE-200) in WebSphere Application Server Liberty allows an authenticated user with the Reader role to obtain sensitive information via the network without user interaction. The vulnerability affects versions 17.0.0.3 through 26.0.0.10 and requires authentication with limited privileges to exploit. The fix is available in Liberty 26.0.0.11 or later.

## Affected products

- IBM WebSphere Application Server Liberty 17.0.0.3 through 26.0.0.10

## Timeline

- 2026-11-08: disclosed

## References

- [https://www.ibm.com/support/pages/node/7295268](https://www.ibm.com/support/pages/node/7295268)

## Related threats

- [IBM WebSphere Application Server Liberty information disclosure in JMX REST connector](https://junglewise.ai/threats/cve-2026-78636-ibm-websphere-application-server-liberty-17-0-0-3-through-26-0-0)
- [IBM WebSphere Application Server Liberty server-side request forgery in Admin Center](https://junglewise.ai/threats/cve-2026-11547-ibm-websphere-application-server-liberty-17-0-0-3-through-26-0-0)
- [IBM WebSphere Application Server Liberty open redirect](https://junglewise.ai/threats/cve-2026-10844-ibm-websphere-application-server-liberty-17-0-0-3-through-26-0-0)
- [IBM WebSphere Application Server Liberty information disclosure](https://junglewise.ai/threats/cve-2026-108284-ibm-websphere-application-server-liberty-17-0-0-3-through-26-0-0)
- [IBM WebSphere Application Server Liberty denial of service via uncaught exception](https://junglewise.ai/threats/cve-2026-95696-ibm-websphere-application-server-liberty-20-0-0-12-through-26-0-0)