# CVE-2026-9036: IBM Netezza Software improper TLS certificate validation

Source: https://junglewise.ai/threats/cve-2026-9036-ibm-netezza-software-improper-tls-certificate-validation  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-03. Updated: 2026-09-25  
License: CC BY 4.0 with a link back

CVE-2026-9036 · Severity: medium · CVSS 5.9 · Published 2026-09-03

IBM Netezza Software, a data warehouse and analytics platform, does not properly validate TLS certificates. An attacker positioned on the network could intercept encrypted communications between the software and servers it connects to, potentially stealing sensitive data without being detected. This allows unauthorized surveillance of database queries, credentials, and other confidential information in transit.

Technologies: [IBM Netezza Software](https://junglewise.ai/threats/technologies/netezza-software), [IBM Netezza Performance Server](https://junglewise.ai/threats/technologies/netezza-performance-server). Vendors: [IBM](https://junglewise.ai/threats/vendors/ibm).

## Quick answers

**Is CVE-2026-9036 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-9036 being exploited in the wild.

**How severe is CVE-2026-9036?** Medium severity, with a CVSS score of 5.9, published 3 September 2026.

**Which products and versions are affected?** IBM Netezza Software 11.3.0.3 through Interim Fix 002.

**Is there a fix for CVE-2026-9036?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-9036 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-9036?** Check whether you run IBM Netezza Software or IBM Netezza Performance Server 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.

## Technical details

The vulnerability is an improper certificate validation flaw (CWE-295) in IBM Netezza Software versions 11.3.0.3 through Interim Fix 002. The software does not properly validate or verify TLS certificates when establishing secure connections, allowing an attacker to perform man-in-the-middle (MITM) attacks over a network. An attacker does not require authentication and can intercept traffic if positioned on the network path. The attacker can read sensitive data transmitted over these connections. The vulnerability is fixed in version 11.3.1.3 or later.

## Affected products

- IBM Netezza Software 11.3.0.3 through Interim Fix 002

## Timeline

- 2026-09-03: disclosed

## References

- [https://www.ibm.com/support/pages/node/7284359](https://www.ibm.com/support/pages/node/7284359)

## Related threats

- [IBM Netezza Software S3 bucket ownership validation bypass](https://junglewise.ai/threats/cve-2026-9745-ibm-netezza-software-s3-bucket-ownership-validation-bypass)
- [IBM Netezza Software TLS certificate validation bypass](https://junglewise.ai/threats/cve-2026-9744-ibm-netezza-software-tls-certificate-validation-bypass)
- [IBM Netezza Software log injection via improper element neutralization](https://junglewise.ai/threats/cve-2026-9736-ibm-netezza-software-log-injection-via-improper-element)
- [IBM Netezza Software hardcoded credentials in registry](https://junglewise.ai/threats/cve-2026-8862-ibm-netezza-software-hardcoded-credentials-in-registry)