CVE-2026-13276: IBM Verify Identity Access parameter injection in reverse proxy

CVE-2026-13276 · Severity: medium · CVSS 6.1 · Published 2026-09-14

IBM Verify Identity Access is an identity and access management solution used to control user authentication and authorization in enterprise environments. A vulnerability allows attackers to inject parameters into requests forwarded to third-party services, potentially enabling unauthorized access, data interception, or manipulation of downstream systems that trust the reverse proxy.

Technologies: IBM Verify Identity Access, IBM Verify Identity Access Container. Vendors: IBM.

Quick answers

Is CVE-2026-13276 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-13276 being exploited in the wild.
How severe is CVE-2026-13276?
Medium severity, with a CVSS score of 6.1, published 14 September 2026.
Which products and versions are affected?
IBM Verify Identity Access 10.0.0 through 10.0.9.2 Interim Fix 001, 11.0.0 through 11.0.3 Interim Fix 001; IBM Verify Identity Access Container 10.0.0 through 10.0.9.2 Interim Fix 001, 11.0.0 through 11.0.3 Interim Fix 001.
Is there a fix for CVE-2026-13276?
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-2026-13276 attacked?
It is attacked over the network, in a hosted service.
Am I affected by CVE-2026-13276?
Check whether you run IBM Verify Identity Access or IBM Verify Identity Access Container 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 (CVE-2026-11927) is a parameter injection flaw in IBM Verify Identity Access reverse proxy functionality, classified as improper neutralization of special elements in output (CWE-74). The reverse proxy fails to properly validate and sanitize parameters before forwarding requests to third-party services, allowing an attacker with network access to inject malicious parameters. This could enable attackers to bypass authentication, manipulate business logic, or access unauthorized data on downstream systems. The vulnerability affects versions 10.0.0 through 10.0.9.2 Interim Fix 001 and 11.0.0 through 11.0.3 Interim Fix 001; patches are available from IBM.

Affected products

  • IBM Verify Identity Access 10.0.0 through 10.0.9.2 Interim Fix 001, 11.0.0 through 11.0.3 Interim Fix 001
  • IBM Verify Identity Access Container 10.0.0 through 10.0.9.2 Interim Fix 001, 11.0.0 through 11.0.3 Interim Fix 001

Timeline

  • 2026-09-14: disclosed

References

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