Is CVE-2026-116666 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-116666 being exploited in the wild.

How severe is CVE-2026-116666?

Medium severity, with a CVSS score of 4.3, published 3 November 2026.

Which products and versions are affected?

Tanium Discover v4.10.0 to v4.10.204 (2025H1); v4.15.0 to v4.15.218 (2025H2); v4.19.0 to v4.19.137 (2026H1).

Is there a fix for CVE-2026-116666?

Yes: fixed in Discover v4.10.204 (2025H1 Update 26), v4.15.218 (2025H2 Update 16), v4.19.137 (2026H1 Update 9) and later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-116666 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2026-116666?

Check whether you run Tanium Discover 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.

CVE-2026-116666: Tanium Discover information disclosure

CVE-2026-116666 · Severity: medium · CVSS 4.3 · Published 2026-11-03

Tanium Discover is an asset discovery and inventory tool used by enterprises to track IT infrastructure. An authenticated user with the Discover Asset read permission can access sensitive data they should not have access to due to an information disclosure vulnerability. This could lead to unauthorized exposure of confidential asset information and compliance violations.

Technologies: Tanium Discover. Vendors: Tanium.

Quick answers

Is CVE-2026-116666 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-116666 being exploited in the wild.
How severe is CVE-2026-116666?: Medium severity, with a CVSS score of 4.3, published 3 November 2026.
Which products and versions are affected?: Tanium Discover v4.10.0 to v4.10.204 (2025H1); v4.15.0 to v4.15.218 (2025H2); v4.19.0 to v4.19.137 (2026H1).
Is there a fix for CVE-2026-116666?: Yes: fixed in Discover v4.10.204 (2025H1 Update 26), v4.15.218 (2025H2 Update 16), v4.19.137 (2026H1 Update 9) and later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-116666 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2026-116666?: Check whether you run Tanium Discover 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.

How to fix

Fixed in: Discover v4.10.204 (2025H1 Update 26), v4.15.218 (2025H2 Update 16), v4.19.137 (2026H1 Update 9) and later

Technical details

An improper access control vulnerability in Tanium Discover allows authenticated users with Discover Asset read permissions to access data outside their intended scope. The vulnerability requires network access and valid authentication credentials. An attacker gains read-only access to restricted asset information.

Affected products

Tanium Discover v4.10.0 to v4.10.204 (2025H1); v4.15.0 to v4.15.218 (2025H2); v4.19.0 to v4.19.137 (2026H1)

Timeline

2026-11-03: disclosed

References

https://security.tanium.com/TAN-2026-093

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