CVE-2026-9156 Tanium addressed a denial of service vulnerability in Tanium Server.
Attackers can cause a denial of service in Tanium Server, requiring administrators to apply the vendor patch.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-9156?
CVE-2026-9156 is a medium-severity denial of service vulnerability in Tanium Server, published on 27 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Tanium addressed a denial of service vulnerability in Tanium Server.
Weakness: CWE-772
Which versions are affected by CVE-2026-9156?
It affects 1 product.
Products include Tanium Server.
How do I fix CVE-2026-9156?
No fix has been published for CVE-2026-9156 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-9156 being exploited?
There is no known exploitation of CVE-2026-9156 in the wild and no public exploit code.
Other vulnerabilities in Tanium Server
- CVE-2026-15053 Tanium addressed a denial of service vulnerability in Tanium Server.
- CVE-2025-15317 Tanium addressed an uncontrolled resource consumption vulnerability in Tanium Server.
- CVE-2025-15322 Tanium addressed an improper access controls vulnerability in Tanium Server.
- CVE-2026-11925 Tanium addressed a User Interface (UI) Misrepresentation of Critical Information vulnerability in Tanium Server.
- CVE-2026-6408 Tanium addressed an information disclosure vulnerability in Tanium Server.
Sources
Also known as GHSA-8987-p6rf-jvmc.