# CVE-2026-17406: IBM API Connect server-side request forgery address check bypass

Source: https://junglewise.ai/threats/cve-2026-17406-ibm-api-connect-10-0-8-0-through-10-0-8-12-and-12-1-0-0-through  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-07. Updated: 2026-11-07  
License: CC BY 4.0 with a link back

CVE-2026-17406 · Severity: high · CVSS 8.5 · Published 2026-11-07

IBM API Connect is an API management platform that serves as a gateway for enterprise APIs. A server-side request forgery vulnerability allows authenticated attackers to bypass address checks and make the server reach internal network destinations that should be blocked, potentially exposing sensitive information on those systems.

Technologies: [IBM API Connect](https://junglewise.ai/threats/technologies/api-connect). Vendors: [IBM](https://junglewise.ai/threats/vendors/ibm).

## Quick answers

**Is CVE-2026-17406 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-17406 being exploited in the wild.

**How severe is CVE-2026-17406?** High severity, with a CVSS score of 8.5, published 7 November 2026.

**Which products and versions are affected?** IBM API Connect 10.0.8.0 through 10.0.8.12, 12.1.0.0 through 12.1.1.2.

**Is there a fix for CVE-2026-17406?** 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-2026-17406 attacked?** It is attacked over the network, in a hosted service.

**Am I affected by CVE-2026-17406?** Check whether you run IBM API Connect 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

CVE-2026-17406 is a server-side request forgery (CWE-918) in IBM API Connect versions 10.0.8.0–10.0.8.12 and 12.1.0.0–12.1.1.2. An authenticated attacker can bypass address restrictions on outbound requests by exploiting insufficient validation of user-supplied URLs, allowing the server to contact internal or otherwise restricted destinations. The vulnerability requires authentication but no user interaction.

## Affected products

- IBM API Connect 10.0.8.0 through 10.0.8.12, 12.1.0.0 through 12.1.1.2

## Timeline

- 2026-11-07: disclosed

## References

- [https://www.ibm.com/support/pages/node/7295635](https://www.ibm.com/support/pages/node/7295635)
- [https://www.ibm.com/support/pages/node/7295637](https://www.ibm.com/support/pages/node/7295637)

## Related threats

- [IBM API Connect server-side request forgery](https://junglewise.ai/threats/cve-2026-75590-ibm-api-connect-12-1-0-0-through-12-1-1-2-could-allow-a-remote)
- [IBM API Connect missing authorization in index access](https://junglewise.ai/threats/cve-2026-19131-ibm-api-connect-12-1-0-0-through-12-1-1-2-could-allow-low)
- [IBM API Connect improper backup server certificate verification](https://junglewise.ai/threats/cve-2026-19129-ibm-api-connect-10-0-8-0-through-10-0-8-12-and-12-1-0-0-through)
- [IBM API Connect server-side request forgery via unauthorized request](https://junglewise.ai/threats/cve-2026-19128-ibm-api-connect-12-1-0-0-through-12-1-1-2-could-allow-an)
- [IBM API Connect weak cryptographic algorithms in authentication](https://junglewise.ai/threats/cve-2026-19126-ibm-api-connect-10-0-8-0-through-10-0-8-12-and-12-1-0-0-through)