Quick answers
- Is CVE-2026-11713 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-11713 being exploited in the wild.
- How severe is CVE-2026-11713?
- Medium severity, with a CVSS score of 5.4, published 13 October 2026.
- Which products and versions are affected?
- IBM WebSphere Application Server Liberty 17.0.0.3 through 26.0.0.9.
- Is there a fix for CVE-2026-11713?
- Yes: fixed in 26.0.0.10. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-11713 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-11713?
- 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: 26.0.0.10
Technical details
A privilege escalation flaw exists in WebSphere Application Server Liberty when the restConnector-2.0 feature is enabled, allowing an authenticated attacker to bypass authorization controls (CWE-863). The vulnerability requires an existing user account with limited privileges and network access to the service; successful exploitation grants elevated permissions to read and modify data within the application.
Affected products
- IBM WebSphere Application Server Liberty 17.0.0.3 through 26.0.0.9
Timeline
- 2026-10-13: disclosed
- 2026-10-06: advisory: IBM Security Bulletin published