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VulnerabilityPublished

CVE-2026-9156: Tanium Server · Missing Release of Resource after Effective Lifetime

Affects Tanium ServerSource CVE Database V5

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Not known to be exploited · CVSS 6.5 Medium · fixed in 7.8.2.1176 : update Tanium Server when convenient.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 3.1 base score
6.5Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 14% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 7.8.2.1176, 7.7.3.8274, 7.6.4.2190
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 27 May 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

Upgrade Tanium Server to 7.8.2.1176, 7.7.3.8274 or 7.6.4.2190.

Affected software

ProductAffectedFixed in
TaniumTanium ServerAffected
  • >=7.8.2.0 <7.8.2.1176
Fixed in
  • 7.8.2.1176
TaniumTanium ServerAffected
  • >=7.7.3.0 <7.7.3.8274
Fixed in
  • 7.7.3.8274
TaniumTanium ServerAffected
  • >=7.6.4.0 <7.6.4.2190
Fixed in
  • 7.6.4.2190

AI-suggested

If you cannot patch yet, limit access to the affected Tanium Server versions to trusted users with minimal privileges to reduce risk.

Description

Tanium addressed a denial of service vulnerability in Tanium Server.

References

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