# CVE-2026-14505: Tanium Data Service path traversal vulnerability

Source: https://junglewise.ai/threats/cve-2026-14505-tanium-data-service-path-traversal-vulnerability  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-09. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-14505 · Severity: medium · CVSS 6.6 · Published 2026-09-09

Tanium Data Service is a component used to collect and manage operational data across enterprise infrastructure. A path traversal vulnerability allows authenticated users with specific administrative permissions to write arbitrary files to the underlying server, potentially compromising system integrity and enabling further attacks on the deployment.

Vendors: [Tanium](https://junglewise.ai/threats/vendors/tanium).

## Quick answers

**Is CVE-2026-14505 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-14505 being exploited in the wild.

**How severe is CVE-2026-14505?** Medium severity, with a CVSS score of 6.6, published 9 September 2026.

**Which products and versions are affected?** Tanium Data Service 4.2 to 4.2.345 (2026H1 Release).

**Is there a fix for CVE-2026-14505?** 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-2026-14505 attacked?** It is attacked over the network, in a hosted service.

**Am I affected by CVE-2026-14505?** Check whether you run Tanium Data Service 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 is a path traversal flaw in Tanium Data Service that allows authenticated users with the "Data Collection Pipeline Write Override" permission to bypass file write restrictions and place arbitrary files on the Tanium Module Server. The attack requires authentication and elevated permissions, but no user interaction is needed. An attacker with these credentials could write malicious files to arbitrary locations, potentially leading to code execution or system compromise. The vulnerability affects Tanium Data Service v4.2 through v4.2.345 in the 2026H1 release and is fixed in Update 4 (v4.2.345) and later.

## Affected products

- Tanium Data Service 4.2 to 4.2.345 (2026H1 Release)

## Timeline

- 2026-09-09: disclosed

## References

- [https://security.tanium.com/TAN-2026-044](https://security.tanium.com/TAN-2026-044)

## Related threats

- [Tanium Data Service path traversal](https://junglewise.ai/threats/cve-2026-108327-tanium-addressed-a-path-traversal-vulnerability-in-tanium-data)