CVE-2026-9156

MEDIUM

Published May 27, 2026 Modified May 29, 2026 CWE-772

Description

Tanium addressed a denial of service vulnerability in Tanium Server.

Is your site exposed to CVE-2026-9156?

Run a free security scan — no signup, results in seconds.

CVSS v3.1 Score

6.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS — Exploit Prediction

0.0024

Probability of exploitation

0.14%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-772 CWE-772

Affected Products

Vendor	Product	Versions
tanium	server	7.6.4.0 — 7.6.4.2190
tanium	server	7.7.3.0 — 7.7.3.8274
tanium	server	7.8.2.0 — 7.8.2.1176

References

Advisories & Patches

https://security.tanium.com/TAN-2026-013

Frequently Asked Questions

What is CVE-2026-9156? +

Tanium addressed a denial of service vulnerability in Tanium Server. It has a CVSS v3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2026-9156? +

CVE-2026-9156 has a CVSS v3.1 score of 6.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0024, placing it in the 0th percentile for exploitation probability.

What products are affected by CVE-2026-9156? +

CVE-2026-9156 affects products from tanium, specifically: server. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-9156? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Related Vulnerabilities

CVE-2026-35227

An unauthenticated remote attacker may exhaust all available TCP connections in the CODESYS Modbus TCP Server stack if a race …

CVE-2025-65947

thread-amount is a tool that gets the amount of threads in the current process. Prior to version 0.2.2, there are …

CVE-2025-3864

Hackney fails to properly release HTTP connections to the pool after handling 307 Temporary Redirect responses. Remote attackers can exploit …

CVE-2026-45287

OpenTelemetry-Go is the Go implementation of OpenTelemetry. Prior to version 0.0.17, `go.opentelemetry.io/otel/schema/v1.0` and `go.opentelemetry.io/otel/schema/v1.1` leaks one file descriptor on each …

CVE-2025-30256 8.6

A denial of service vulnerability exists in the HTTP Header Parsing functionality of Tenda AC6 V5.0 V02.03.01.110. A specially crafted …

CVE-2024-2398 8.6

When an application tells libcurl it wants to allow HTTP/2 server push, and the amount of received headers for the …