Description
Tanium addressed an improper certificate validation vulnerability in Stream Client Extension.
Published: 2026-10-27
Score: 6.5 Medium
EPSS: n/a
KEV: No
Impact: Remote Code Execution
Action: Apply Patch
AI Analysis

Impact

The vulnerability involves improper certificate validation within Tanium’s Stream Client Extension, which could allow an attacker to present a forged or tampered certificate and thus intercept or modify stream traffic. This flaw is categorized under CWE‑295 and could potentially enable an attacker to execute code or gain unauthorized access by exploiting the compromised integrity of the data transmitted over the stream.

Affected Systems

Affecteds include Tanium’s Endpoint Configuration Toolset Solution and the cx‑stream product. No specific version numbers are listed in the provided data, so any installation of these products that consumes the Stream Client Extension may be susceptible until an update is applied.

Risk and Exploitability

The CVSS score of 6.5 indicates a moderate to high severity, and although the EPSS score is not available, the lack of a KEV listing suggests no confirmed exploitation yet. Nevertheless, attackers with network reach could exploit the flaw by intercepting SSL/TLS traffic and injecting malicious data, making the risk significant, particularly for organizations that rely on the extension for critical configuration or data streaming.

Generated by OpenCVE AI on October 27, 2026 at 18:35 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Apply the most recent Tanium update that addresses the certificate validation issue for both the Endpoint Configuration Toolset Solution and the cx‑stream component.
  • If the Stream Client Extension is not critical for your environment, disable or uninstall it to eliminate the vulnerability surface.
  • Configure all Tanium components to reject self‑signed, expired, or otherwise invalid certificates, and ensure that the CA trust store is properly maintained.
  • Monitor network traffic and system logs for any certificate validation errors or anomalous stream activity, and respond to any detected incidents promptly.

Generated by OpenCVE AI on October 27, 2026 at 18:35 UTC.

Tracking

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Advisories

No advisories yet.

References
History

Tue, 27 Oct 2026 17:45:00 +0000

Type Values Removed Values Added
Description Tanium addressed an improper certificate validation vulnerability in Stream Client Extension.
Title Tanium addressed an improper certificate validation vulnerability in Stream Client Extension.
Weaknesses CWE-295
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:L'}


Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: Tanium

Published:

Updated: 2026-10-27T17:35:05.870Z

Reserved: 2026-10-09T19:21:32.766Z

Link: CVE-2026-108326

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-27T18:17:33.267

Modified: 2026-10-27T18:17:33.267

Link: CVE-2026-108326

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-27T18:45:07Z

Weaknesses
  • CWE-295

    Improper Certificate Validation