# CVE-2026-14435: IBM Turbonomic kubeturbo agent improper TLS certificate validation

Source: https://junglewise.ai/threats/cve-2026-14435-ibm-turbonomic-kubeturbo-agent-8-16-0-through-8-20-3-does-not  
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-2026-14435 · Severity: medium · CVSS 5.9 · Published 2026-11-08

IBM Turbonomic kubeturbo is an agent that manages Kubernetes cluster resource optimization and can make configuration changes with elevated privileges. A flaw in TLS certificate validation allows attackers to intercept communications via man-in-the-middle attacks and obtain sensitive information. This risk is elevated in environments where the agent operates with high privileges to make infrastructure changes.

Technologies: [IBM Turbonomic kubeturbo agent](https://junglewise.ai/threats/technologies/turbonomic-kubeturbo-agent). Vendors: [IBM](https://junglewise.ai/threats/vendors/ibm).

## Quick answers

**Is CVE-2026-14435 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-14435 being exploited in the wild.

**How severe is CVE-2026-14435?** Medium severity, with a CVSS score of 5.9, published 8 November 2026.

**Which products and versions are affected?** IBM Turbonomic kubeturbo agent 8.16.0 through 8.20.3.

**Is there a fix for CVE-2026-14435?** Yes: fixed in 8.20.4. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-14435 attacked?** It is attacked over the network, in a hosted service.

**Am I affected by CVE-2026-14435?** Check whether you run IBM Turbonomic kubeturbo agent 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 8.20.4

## Technical details

The kubeturbo agent fails to properly validate TLS certificates (CWE-295), enabling network-based man-in-the-middle attacks without authentication or user interaction required. An attacker can intercept encrypted communications to extract sensitive data such as credentials, performance metrics, or configuration information. The vulnerability affects versions 8.16.0 through 8.20.3 and is fixed in version 8.20.4.

## Affected products

- IBM Turbonomic kubeturbo agent 8.16.0 through 8.20.3

## Timeline

- 2026-10-02: disclosed
- 2026-11-08: advisory

## References

- [https://www.ibm.com/support/pages/node/7290683](https://www.ibm.com/support/pages/node/7290683)

## Related threats

- [IBM Turbonomic kubeturbo agent improper TLS certificate validation](https://junglewise.ai/threats/cve-2026-14434-ibm-turbonomic-kubeturbo-agent-8-16-0-through-8-21-2-does-not)
- [IBM Turbonomic kubeturbo agent server-side request forgery](https://junglewise.ai/threats/cve-2026-14377-ibm-turbonomic-kubeturbo-agent-8-16-0-through-8-21-2-is)