CVE-2026-87113: Tanium Threat Response improper access control in alerts

CVE-2026-87113 · Severity: medium · CVSS 6.3 · Published 2026-09-16

Tanium Threat Response, a security monitoring and threat detection platform, contains an improper access control vulnerability that allows authenticated users with alert management privileges to create or modify security alerts beyond their intended scope. An attacker with basic user credentials could circumvent role-based access controls to manipulate alerts, potentially hiding threats or creating false alerts that disrupt security operations.

Technologies: Tanium Threat Response. Vendors: Tanium.

Quick answers

Is CVE-2026-87113 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-87113 being exploited in the wild.
How severe is CVE-2026-87113?
Medium severity, with a CVSS score of 6.3, published 16 September 2026.
Which products and versions are affected?
Tanium Threat Response 2025H1 prior to Update 25 (v4.9.449), 2025H2 prior to Update 15 (v4.12.319), 2026H1 prior to Update 8 (v4.17.291).
Is there a fix for CVE-2026-87113?
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-2026-87113 attacked?
It is attacked over the network.
Am I affected by CVE-2026-87113?
Check whether you run Tanium Threat Response 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

This is an improper access control vulnerability (CWE-284) in Tanium Threat Response's alert management functionality. The vulnerability allows an authenticated user with the "Threat Response Alerts Write" permission to access and modify alerts that should be restricted based on role-based access controls. The attack requires network access and valid authentication credentials, but no additional user interaction is needed. An attacker can exploit this to create unauthorized alerts or modify existing ones, potentially masking security incidents or triggering false alarms. Patches are available across all affected releases (2025H1 Update 25, 2025H2 Update 15, and 2026H1 Update 8).

Affected products

  • Tanium Threat Response 2025H1 prior to Update 25 (v4.9.449), 2025H2 prior to Update 15 (v4.12.319), 2026H1 prior to Update 8 (v4.17.291)

Timeline

  • 2026-09-16: disclosed

References

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