What is CVE-2026-108309?

CVE-2026-108309 is a medium-severity vulnerability in Tanium Performance-Cx, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 5.5/10. Published 2026-10-27.

How severe is CVE-2026-108309?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Resource exhaustion in Tanium Performance-Cx

CVE-2026-108309

Tanium addressed an uncontrolled resource consumption vulnerability in Performance Client Extension.

Published 2026-10-27.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Tanium Performance-Cx

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

References

3938794e-25f5-4123-a1ba-5cbd7f104512

Frequently asked questions

What is CVE-2026-108309?: CVE-2026-108309 is a medium-severity vulnerability in Tanium Performance-Cx, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 5.5/10. Published 2026-10-27.
How severe is CVE-2026-108309?: Medium severity. CVSS v3 base score is 5.5 out of 10.