# CVE-2026-78406: IBM Security Verify Access deserialization of untrusted data

Source: https://junglewise.ai/threats/cve-2026-78406-ibm-security-verify-access-10-0-through-10-0-9-2-and-ibm-verify  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-08. Updated: 2026-10-16  
License: CC BY 4.0 with a link back

CVE-2026-78406 · Severity: critical · CVSS 9.8 · Published 2026-10-08

IBM Security Verify Access is an identity and access management system that controls authentication and authorization for enterprise applications. A remote attacker can execute arbitrary code on the server without authentication by sending specially crafted requests that exploit insecure deserialization, allowing complete system compromise including data theft, service disruption, and lateral movement.

Technologies: [IBM Security Verify Access](https://junglewise.ai/threats/technologies/security-verify-access), [IBM Security Verify Access Container](https://junglewise.ai/threats/technologies/security-verify-access-container), [IBM Verify Identity Access](https://junglewise.ai/threats/technologies/verify-identity-access), [IBM Verify Identity Access Container](https://junglewise.ai/threats/technologies/verify-identity-access-container). Vendors: [IBM](https://junglewise.ai/threats/vendors/ibm).

## Quick answers

**Is CVE-2026-78406 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-78406 being exploited in the wild.

**How severe is CVE-2026-78406?** Critical severity, with a CVSS score of 9.8, published 8 October 2026.

**Which products and versions are affected?** IBM Security Verify Access 10.0 through 10.0.9.2; IBM Verify Identity Access 11.0 through 11.0.3.

**Is there a fix for CVE-2026-78406?** 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-2026-78406 attacked?** It is attacked over the network, in a hosted service.

**Am I affected by CVE-2026-78406?** Check whether you run IBM Security Verify Access, IBM Security Verify Access Container, IBM Verify Identity Access or one of the others listed 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 exists in the deserialization of untrusted data (CWE-502), allowing remote code execution without prior authentication. The attack requires only network access and no user interaction. An unauthenticated attacker can send malicious serialized objects to execute arbitrary commands with the privileges of the application.

## Affected products

- IBM Security Verify Access 10.0 through 10.0.9.2
- IBM Verify Identity Access 11.0 through 11.0.3

## Timeline

- 2026-10-08: disclosed

## References

- [https://www.ibm.com/support/pages/node/7291628](https://www.ibm.com/support/pages/node/7291628)

## Related threats

- [IBM Verify Identity Access and Security Verify Access hard-coded credentials privilege escalation](https://junglewise.ai/threats/cve-2026-109126-ibm-verify-identity-access-11-0-3-1-and-ibm-security-verify)
- [IBM Security Verify Access cross-site scripting in Web UI](https://junglewise.ai/threats/cve-2026-78407-ibm-security-verify-access-10-0-through-10-0-9-2-and-ibm-verify)
- [IBM Security Verify Access deserialization of untrusted data](https://junglewise.ai/threats/cve-2026-78401-ibm-security-verify-access-10-0-through-10-0-9-2-and-ibm-verify)
- [IBM Security Verify Access and Verify Identity Access denial of service](https://junglewise.ai/threats/cve-2026-78399-ibm-security-verify-access-10-0-through-10-0-9-2-and-ibm-verify)
- [IBM Security Verify Access CSRF vulnerability](https://junglewise.ai/threats/cve-2026-78388-ibm-security-verify-access-10-0-through-10-0-9-2-and-ibm-verify)