# CVE-2026-17416: IBM App Connect Enterprise insecure deserialization

Source: https://junglewise.ai/threats/cve-2026-17416-ibm-app-connect-enterprise-insecure-deserialization  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-14. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-17416 · Severity: high · CVSS 7.8 · Published 2026-09-14

IBM App Connect Enterprise is an integration platform that connects business applications and data across an organization. A local attacker can execute arbitrary code on systems running affected versions (12.0.1.0–12.0.12.27 and 13.0.1.0–13.0.8.0) by exploiting insecure deserialization, potentially compromising the entire integration infrastructure and any connected systems.

Technologies: [IBM App Connect Enterprise](https://junglewise.ai/threats/technologies/app-connect-enterprise). Vendors: [IBM](https://junglewise.ai/threats/vendors/ibm).

## Quick answers

**Is CVE-2026-17416 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-17416 being exploited in the wild.

**How severe is CVE-2026-17416?** High severity, with a CVSS score of 7.8, published 14 September 2026.

**Which products and versions are affected?** IBM App Connect Enterprise 12.0.1.0–12.0.12.27, 13.0.1.0–13.0.8.0.

**Is there a fix for CVE-2026-17416?** 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.

**Am I affected by CVE-2026-17416?** Check whether you run IBM App Connect Enterprise 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 a CWE-502 insecure deserialization flaw (CVE-2026-17416) in IBM App Connect Enterprise that allows arbitrary code execution. The attack vector is local (AV:L) with no privileges required (PR:N), but requires user interaction (UI:R). An attacker can craft malicious serialized objects that, when deserialized by the application, execute arbitrary code with the privileges of the process. Patches are available: version 13.0.8.1 and 12.0.12.28 include APAR IT49855.

## Affected products

- IBM App Connect Enterprise 12.0.1.0–12.0.12.27, 13.0.1.0–13.0.8.0

## Timeline

- 2026-09-07: disclosed
- 2026-09-14: advisory

## References

- [https://www.ibm.com/support/pages/node/7286530](https://www.ibm.com/support/pages/node/7286530)

## Related threats

- [IBM App Connect Enterprise HTML injection in web UI](https://junglewise.ai/threats/cve-2026-18196-ibm-app-connect-enterprise-13-0-1-0-through-13-0-8-2-and-12-0-1-0)
- [IBM App Connect Enterprise content spoofing in error messages](https://junglewise.ai/threats/cve-2026-18195-ibm-app-connect-enterprise-13-0-1-0-through-13-0-8-2-and-12-0-1-0)
- [IBM App Connect Enterprise broken access control in REST API](https://junglewise.ai/threats/cve-2026-18093-ibm-app-connect-enterprise-13-0-1-0-through-13-0-8-2-could-allow)
- [IBM App Connect Enterprise arbitrary file write in archive extraction](https://junglewise.ai/threats/cve-2026-17437-ibm-app-connect-enterprise-13-0-1-0-through-13-0-8-2-and-12-0-1-0)
- [IBM App Connect Enterprise binding to unrestricted IP address](https://junglewise.ai/threats/cve-2026-92559-ibm-app-connect-enterprise-13-0-1-0-through-13-0-8-2-could-allow)