Uncontrolled resource use in Tanium Performance Client Extension
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-770.
Summary
Tanium Endpoint Configuration Toolset Solution versions from 1.51 before 1.51.60, from 1.59 before 1.59.50 and from 1.71 before 1.71.25 are affected, and the performance-cx package is also affected. The flaw is an allocation of resources without limits (CWE-770), so the software does not restrict how much resource it consumes. A local user with low privileges can exhaust resources and degrade availability, and no user interaction is needed.
Written with Claude Haiku 5.5 from the sources below · 2026-11-04
Description from the CNA
Tanium addressed an uncontrolled resource consumption vulnerability in Performance Client Extension.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Tanium | Endpoint Configuration Toolset Solution | 1.51 to before 1.51.60; 1.59 to before 1.59.50; 1.71 to before 1.71.25 | 1.51.60, 1.59.50, 1.71.25 | Patch available | CNA |
| Tanium | performance-cx | 2.7.648 to before 2.7.648; 2.8.2110 to before 2.8.2110; 2.9.1165 to before 2.9.1165; 2.11.1312 to before 2.11.1312; 2.13.1010 to before 2.13.1010; 2.14.56 to before 2.14.56 | 2.7.648, 2.8.2110, 2.9.1165, 2.11.1312, 2.13.1010, 2.14.56 | Patch available | CNA |
- Endpoint Configuration Toolset Solution VendorTanium Affected 1.51 to before 1.51.60; 1.59 to before 1.59.50; 1.71 to before 1.71.25 Fixed in 1.51.60, 1.59.50, 1.71.25 Patch available CNA
- performance-cx VendorTanium Affected 2.7.648 to before 2.7.648; 2.8.2110 to before 2.8.2110; 2.9.1165 to before 2.9.1165; 2.11.1312 to before 2.11.1312; 2.13.1010 to before 2.13.1010; 2.14.56 to before 2.14.56 Fixed in 2.7.648, 2.8.2110, 2.9.1165, 2.11.1312, 2.13.1010, 2.14.56 Patch available CNA
Remediation
Update Tanium Endpoint Configuration Toolset Solution to version 1.51.60, 1.59.50 or 1.71.25, depending on the release line in use. Update performance-cx to version 2.7.648, 2.8.2110, 2.9.1165, 2.11.1312, 2.13.1010 or 2.14.56, depending on the release line in use.
Written with Claude Haiku 5.5 from the sources below · 2026-11-04
- Fix · CNA Endpoint Configuration Toolset Solution (Tanium) Fixed in 1.51.60, 1.59.50, 1.71.25
- Fix · CNA performance-cx (Tanium) Fixed in 2.7.648, 2.8.2110, 2.9.1165, 2.11.1312, 2.13.1010, 2.14.56
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Tanium Endpoint Configuration Toolset Solution 1.51.60, 1.59.50, 1.71.25
10 records Highest priority Priority LOW 10 LOW
Other records, highest priority first
- TI-2026-81463 Heap-based buffer overflow in Tanium IndexPriority LOW 35
- TI-2026-81462 Local privilege escalation in Tanium End-User NotificationsPriority LOW 35
- TI-2026-81461 Local privilege escalation in Tanium End-User NotificationsPriority LOW 35
Timeline
- 2026-10-27 Threatist record created from CVE-2026-108309
- 2026-10-27 Alias added: GHSA-56cf-2mrw-cg3v
- 2026-10-28 Priority changed: MEDIUM → LOW
- 2026-11-04 CISA SSVC decision points changed
References
Other 1
More Tanium vulnerabilities
- TI-2026-81473 Unauthorized code execution in Tanium Threat Response CVSS 3.1HIGH 8.8
- TI-2026-81459 Tanium Certificate Manager unauthorized code execution vulnerability CVSS 3.1HIGH 8.8
- TI-2026-59476 Tanium addressed a SQL injection vulnerability in Threat Response. CVSS 3.1HIGH 8.8
- TI-2026-08094 Tanium addressed an unauthorized code execution vulnerability in Connect. CVSS 3.1HIGH 8.8
- TI-2026-08093 Tanium addressed an unauthorized code execution vulnerability in Connect. CVSS 3.1HIGH 8.8
- TI-2025-13983 Tanium addressed an improper input validation vulnerability in Deploy. CVSS 3.1HIGH 8.8
Sources
- CVE-2026-108309 · CVE Program
- CVE-2026-108309 · NVD
- FIRST EPSS
- GHSA-56cf-2mrw-cg3v · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences