# CVE-2026-116648: Tanium Discover formula injection in CSV export

Source: https://junglewise.ai/threats/cve-2026-116648-tanium-addressed-an-improper-output-sanitization-vulnerability  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-03. Updated: 2026-11-03  
License: CC BY 4.0 with a link back

CVE-2026-116648 · Severity: medium · CVSS 4.1 · Published 2026-11-03

Tanium Discover, an endpoint management and discovery tool, contains an improper output sanitization vulnerability that allows authenticated users to inject arbitrary formulas into CSV files during export. When a user with Discover Locations write permission exports data and another user opens the exported CSV file in spreadsheet software that auto-executes formulas, the injected formulas could execute, potentially causing a denial of service or data exposure.

Technologies: [Tanium Discover](https://junglewise.ai/threats/technologies/discover). Vendors: [Tanium](https://junglewise.ai/threats/vendors/tanium).

## Quick answers

**Is CVE-2026-116648 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-116648 being exploited in the wild.

**How severe is CVE-2026-116648?** Medium severity, with a CVSS score of 4.1, published 3 November 2026.

**Which products and versions are affected?** Tanium Discover v4.10.0 to v4.10.204, v4.15.0 to v4.15.218, v4.19.0 to v4.19.137.

**Is there a fix for CVE-2026-116648?** Yes: fixed in Discover v4.10.204 (2025H1 Release Update 26), v4.15.218 (2025H2 Release Update 16), v4.19.137 (2026H1 Release Update 9) and later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-116648 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-116648?** 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 Release Update 26), v4.15.218 (2025H2 Release Update 16), v4.19.137 (2026H1 Release Update 9) and later

## Technical details

The vulnerability is an improper output sanitization flaw in Discover's CSV export functionality that allows authenticated users with Discover Locations write permission to inject arbitrary formulas (such as Excel formulas) into exported CSV files. The attack requires user interaction: the victim must open the malicious CSV file in spreadsheet software that automatically executes formulas. An attacker gains the ability to trigger formula execution on victim systems, which can lead to denial of service or information disclosure depending on the spreadsheet application's capabilities.

## Affected products

- Tanium Discover v4.10.0 to v4.10.204, v4.15.0 to v4.15.218, v4.19.0 to v4.19.137

## Timeline

- 2026-11-03: disclosed

## References

- [https://security.tanium.com/TAN-2026-084](https://security.tanium.com/TAN-2026-084)

## Related threats

- [Tanium Discover improper access controls](https://junglewise.ai/threats/cve-2026-116669-tanium-addressed-an-improper-access-controls-vulnerability-in)
- [Tanium Discover uncontrolled resource consumption](https://junglewise.ai/threats/cve-2026-116668-tanium-addressed-an-uncontrolled-resource-consumption)
- [Tanium Discover improper access control](https://junglewise.ai/threats/cve-2026-116667-tanium-addressed-an-improper-access-controls-vulnerability-in)
- [Tanium Discover information disclosure](https://junglewise.ai/threats/cve-2026-116666-tanium-addressed-an-information-disclosure-vulnerability-in)
- [Tanium Discover information disclosure via asset permission bypass](https://junglewise.ai/threats/cve-2026-116665-tanium-addressed-an-information-disclosure-vulnerability-in)