VulnerabilityPublished 16 Sep 2026

CVE-2026-87113: Tanium Threat Response · Insecure Direct Object Reference

Affects Tanium Threat ResponseSource CVE Database V5

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Not known to be exploited · CVSS 6.3 Medium · fixed in 4.17.291 : update Tanium Threat Response when convenient.

Data as of 31 Oct 2026, 20:20 UTC

CVSS 3.1 base score

6.3Medium

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

EPSS: 0.2% chance of exploitation in 30 days – higher than 17% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 4.17.291, 4.12.319, 4.9.449

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

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

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: Low: There is some loss of confidentiality. Access to some restricted information is obtained, but the attacker does not have control over what information is obtained, or the amount or kind of loss is limited. The information disclosure does not cause a direct, serious loss to the impacted component.
Integrity: Low: Modification of data is possible, but the attacker does not have control over the consequence of a modification, or the amount of modification is limited. The data modification does not have a direct, serious impact on the impacted component.
Availability: Low: Performance is reduced or there are interruptions in resource availability. Even if repeated exploitation of the vulnerability is possible, the attacker does not have the ability to completely deny service to legitimate users. The resources in the impacted component are either partially available all of the time, or fully available only some of the time, but overall there is no direct, serious consequence to 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-x4m7-w7jf-mj86

What to do

Upgrade Tanium Threat Response to 4.17.291, 4.12.319 or 4.9.449.

Affected software

Product	Affected	Fixed in
TaniumThreat Response	Affected >=4.17 <4.17.291	Fixed in 4.17.291
TaniumThreat Response	Affected >=4.12 <4.12.319	Fixed in 4.12.319
TaniumThreat Response	Affected >=4.9 <4.9.449	Fixed in 4.9.449

AI-suggested

Upgrade Tanium Threat Response to versions 4.9.449 or later, 4.12.319 or later, or 4.17.291 or later where this vulnerability has been fixed. No additional mitigation steps are indicated.

Description

CVE-2026-87113 is an authorization bypass vulnerability in Tanium Threat Response caused by improper access controls related to user-controlled keys. This flaw allows an attacker with limited privileges to potentially gain unauthorized access or perform unauthorized actions. Tanium has addressed this vulnerability in specific patched versions.

Impact

An attacker with low privileges can bypass authorization controls, potentially leading to unauthorized access or modification of data and limited disruption of availability. The impact is rated medium with low confidentiality, integrity, and availability impacts.

Summary

This vulnerability in Tanium Threat Response involves improper access controls that enable authorization bypass through user-controlled keys. The issue affects versions 4.9 up to but not including 4.9.449, 4.12 up to but not including 4.12.319, and 4.17 up to but not including 4.17.291. The CVSS v3.1 base score is 6.3, indicating a medium severity level. The vector indicates network attack vector, low attack complexity, requires low privileges, no user interaction, and impacts confidentiality, integrity, and availability at a low level. There are no known exploits in the wild at the time of publication.

References

security.tanium.com/TAN-2026-048 (opens in a new tab)

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Exploitation evidence

What to do

Affected software

Description

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

Technical details

References

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