# CVE-2026-12358: IBM Verify Identity Access denial of service due to uncontrolled recursion

Source: https://junglewise.ai/threats/cve-2026-12358-ibm-verify-identity-access-denial-of-service-due-to-uncontrolled  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-15. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-12358 · Severity: high · CVSS 7.5 · Published 2026-09-15

IBM Verify Identity Access is an identity and access management solution used to control authentication and authorization for enterprise applications. A remote attacker without credentials can send specially crafted requests that trigger uncontrolled recursion in the system, causing it to crash and become unavailable to legitimate users. This results in service outages affecting business operations and user access to protected resources.

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

## Quick answers

**Is CVE-2026-12358 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-12358 being exploited in the wild.

**How severe is CVE-2026-12358?** High severity, with a CVSS score of 7.5, published 15 September 2026.

**Which products and versions are affected?** IBM Verify Identity Access.

**Is there a fix for CVE-2026-12358?** 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-2026-12358 attacked?** It is attacked over the network, in a hosted service.

**Am I affected by CVE-2026-12358?** Check whether you run IBM Verify Identity Access. 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-674 uncontrolled recursion flaw in IBM Verify Identity Access caused by insufficient validation of incoming request resources. An unauthenticated network attacker can exploit this by sending malformed or specially crafted requests that bypass validation controls and trigger recursive processing, exhausting system resources and crashing the service. The attack requires no special preconditions or user interaction. IBM has released patches to address this vulnerability as documented in their security bulletin.

## Affected products

- IBM Verify Identity Access

## Timeline

- 2026-09-15: disclosed

## References

- [https://www.ibm.com/support/pages/node/7286188](https://www.ibm.com/support/pages/node/7286188)

## 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-2026-78406-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)