VulnerabilityPublished 16 Sep 2026

CVE-2026-87076: Tanium Discover · Information Exposure

Affects Tanium DiscoverSource CVE Database V5

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Not known to be exploited · CVSS 6.5 Medium · fixed in 4.19.114 : update Tanium Discover when convenient.

Data as of 31 Oct 2026, 20:20 UTC

CVSS 3.1 base score

6.5Medium

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 0.3% chance of exploitation in 30 days – higher than 31% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 4.19.114, 4.15.198, 4.10.190

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

Attack Vector: Network
Attack Complexity: Low
Privileges Required: Low
User Interaction: None
Scope: Unchanged
Confidentiality: High
Integrity: None
Availability: None

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: Low: The attacker is authorized with (i.e., requires) privileges that provide basic user capabilities that could normally affect only settings and files owned by a user. Alternatively, an attacker with Low privileges may have the ability to cause an impact only to non-sensitive resources.
User Interaction: None: The vulnerable system can be exploited without any interaction from any user.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: High: There is total loss of confidentiality, resulting in all resources within the impacted component being divulged to the attacker. Alternatively, access to only some restricted information is obtained, but the disclosed information presents a direct, serious impact.
Integrity: None: There is no loss of integrity within the impacted component.
Availability: None: There is no impact to availability within the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 16 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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 31 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

ghsa-3p85-82gq-6c7j

What to do

Upgrade Tanium Discover to 4.19.114, 4.15.198 or 4.10.190.

Affected software

Product	Affected	Fixed in
TaniumDiscover	Affected >=4.19 <4.19.114	Fixed in 4.19.114
TaniumDiscover	Affected >=4.15 <4.15.198	Fixed in 4.15.198
TaniumDiscover	Affected >=4.10 <4.10.190	Fixed in 4.10.190

AI-suggested

Upgrade Tanium Discover to versions 4.10.190 or later, 4.15.198 or later, or 4.19.114 or later where this vulnerability has been fixed. No additional mitigation guidance is provided. Patch status is confirmed by the vendor's addressing of the issue in these versions.

Description

An information disclosure vulnerability (CVE-2026-87076) was identified and addressed in Tanium Discover. This flaw could allow unauthorized actors to access sensitive information. The vulnerability affects specific versions of Tanium Discover prior to fixed releases. The CVSS score is 6.5, indicating a medium severity level. No known exploits are reported in the wild. The vulnerability does not impact cloud services and requires local privileges to exploit.

Impact

Successful exploitation could lead to unauthorized disclosure of sensitive information. The confidentiality impact is high, but integrity and availability are not affected. The attack requires network access and low privileges but no user interaction.

Summary

CVE-2026-87076 is an information disclosure vulnerability in Tanium Discover that allows exposure of sensitive information to unauthorized actors. The vulnerability affects versions >=4.10 and <4.10.190, >=4.15 and <4.15.198, and >=4.19 and <4.19.114. The CVSS 3.1 base score is 6.5 with vector AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N, indicating network attack vector, low attack complexity, requires low privileges, no user interaction, unchanged scope, and high confidentiality impact with no integrity or availability impact. Tanium has addressed this vulnerability in later versions.

References

security.tanium.com/TAN-2026-024 (opens in a new tab)

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 24 Sep 2026, 05:28 UTC

Technical details

References

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