Medium severity · published Oct 27, 2026
CVE-2026-108309
Tanium addressed an uncontrolled resource consumption vulnerability in Performance Client Extension.
New
5.5
CVSS
0.1%
EPSS
No
On KEV
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 1% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EC
Endpoint Configuration Toolset Solution · Tanium
1.51 before 1.51.60; 1.59 before 1.59.50; 1.71 before 1.71.25 · source: vendor
PE
performance-cx · Tanium
2.7.648 before 2.7.648; 2.8.2110 before 2.8.2110; 2.9.1165 before 2.9.1165; 2.11.1312 before 2.11.1312; 2.13.1010 before 2.13.1010; 2.14.56 before 2.14.56 · source: vendor
Affected product
EC
Endpoint Configuration Toolset Solution
Tanium
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-108309
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-108309
security.tanium.com
https://security.tanium.com/TAN-2026-070
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