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Tanium Comply CVE-2026-116647

| EUVDEUVD-2026-111252 HIGH
Improper Neutralization of Formula Elements in a CSV File (CWE-1236)
2026-10-27 Tanium GHSA-f53f-m8g7-wxwh
7.1
CVSS 3.1 · Vendor: Tanium
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Inject unsanitized data into Comply input
  2. Delivery
    Data stored and later rendered as output
  3. Exploit
    Victim operator views crafted output
  4. Execution
    Unsanitized content executes in victim context
  5. Impact
    Disclose or leak sensitive information

Vulnerability Assessment

Weakness
CWE
ASVS 5.0
V1 - Encoding and Sanitization CSV injection prevention
Exploitation Conditions

The CVSS vector (PR:N) indicates no authentication is required to introduce the malicious input, but UI:R means a successful attack depends on an authorized user subsequently viewing or exporting the affected Comply output - that user interaction is the primary limiting factor. The scope change (S:C) implies the mishandled output affects a component or trust context beyond the one the attacker directly controls (e.g., the viewing operator's session or an exported artifact). The description only states this is an 'improper output sanitization' issue (CWE-1236) in Comply; the exact feature, injection point, affected output format, and deployment mode are not described in the available sources, so the concrete triggering configuration cannot be confirmed. Further limiters: only Comply versions below the listed fixed builds (2.32.263 / 2.35.323 / 2.37.326) on the respective branches are affected, and impact is bounded (Low confidentiality/integrity/availability).

Impact

The CVSS 3.1 base score of 7.1 (vector AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L) is driven more by the network vector, lack of required privileges, and the scope change (S:C) than by impact, since confidentiality, integrity, and availability are all rated Low. The defining limiter is UI:R - exploitation requires a victim to interact with attacker-influenced output - which pushes this out of the 'wormable/drive-by' category and toward opportunistic or targeted abuse. The vuln.today priority is 'this_week', consistent with a patched, vendor-reported issue that is not an emergency but should not be deferred. There is no KEV listing, so there is no confirmed active exploitation; there is no PoC or exploit reference in the input, so this is no public exploit identified at time of analysis; and no EPSS score was supplied, so probabilistic exploitation likelihood cannot be quantified from the data provided. Net: this is a legitimate but moderate-priority, interaction-dependent information-disclosure/output-sanitization issue rather than a high-CVSS-but-trivially-exploitable critical - the 7.1 is inflated somewhat by S:C, while the Low/Low/Low impact triad and mandatory user interaction keep real-world risk moderate.

Exploit ScenarioDerived

An attacker places malicious, improperly sanitized content so that it is later rendered or exported by Tanium Comply; when an operator views that output, the unsanitized data is processed in the operator's context, crossing a trust/scope boundary (S:C) to disclose information or perform limited actions. Because the CVSS vector requires user interaction (UI:R), the attack hinges on an authorized user opening or viewing the affected output. No public exploit code or PoC reference is present in the supplied data.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
Patch available 0.2% exploitation probability (EPSS)

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AnalysisAIv1 – Oct 28, 2026

Improper output sanitization in Tanium Comply allows a remote, unauthenticated attacker to introduce crafted content that is rendered or exported when an authorized operator views the affected output, with the scope change indicating impact beyond the attacker-controlled component, such as the operator's session or an exported file. Only Comply 2.32 before 2.32.263, 2.35 before 2.35.323, and 2.37 before 2.37.326 are affected; confidentiality, integrity, and availability impacts are Low, and the required user interaction is the main limiting factor. No public exploit was identified at the time of analysis, and patched builds are available from Tanium.

RemediationAI

Vendor-released patch: update Tanium Comply 2.32 to 2.32.263 or later, 2.35 to 2.35.323 or later, and 2.37 to 2.37.326 or later, as applicable to the deployed branch; the vendor advisory is https://security.tanium.com/TAN-2026-069. The supplied sources do not describe a workaround or compensating control, so remediation is to apply the fixed build. After updating, verify the deployed Comply version against the branch cutoff to confirm the fix is in place.

Affected VersionsENISA

Comply 2.32 <2.32.263
Comply 2.37 <2.37.326
Comply 2.35 <2.35.323

Affected Packages

euvd comply fix: 2.32.263, 2.35.323, 2.37.326

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

CWE-1236 is Improper Neutralization of Formula Elements in a Spreadsheet, often called CSV or formula injection, a class in which untrusted input is written into a spreadsheet or similar exported structure without neutralizing formula syntax. In Tanium Comply, the advisory describes the issue only as improper output sanitization; the exact feature, injection point, affected output format, and deployment mode are not described in the available sources, so the concrete triggering configuration is not confirmed. The CPE cpe:2.3:a:tanium:comply:*:*:*:*:*:*:*:* is a broad wildcard for the product, while EUVD supplies the version cutoffs 2.32.263, 2.35.323, and 2.37.326. The CVSS vector AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L indicates network reachability, no required privileges for the input, and a required user action; the S:C scope change means the mishandled output can affect a component or trust context beyond the one the attacker directly controls. Impact is bounded to Low across confidentiality, integrity, and availability.

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Severity by source

Vendor (Tanium) PRIMARY 7.1 HIGH
AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
vuln.today AI 7.1 HIGH

Output-sanitization flaw reachable over the network with no privileges but requiring a victim to view the crafted output (UI:R), crossing a trust boundary (S:C) with bounded Low impact; trigger undescribed, so metrics align with the reported vector.

3.1 AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
4.0 AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

Primary rating from Vendor (Tanium).

CVSS VectorVendor: Tanium

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

Lifecycle Timeline

2
Patch available
Oct 27, 2026 - 18:18 EUVD
CVE Published
Oct 27, 2026 - 17:35 cve.org
HIGH 7.1

DescriptionCVE.org

Tanium addressed an improper output sanitization vulnerability in Comply.

Executive ViewAI

Why It Matters

Tanium Comply, a compliance management solution, contains a high-severity improper output sanitization flaw (CVE-2026-116647) that could allow an unauthenticated remote attacker to inject crafted content into reports or interfaces viewed by authorized operators, potentially compromising operator sessions or exported files. The vulnerability affects specific versions of Tanium Comply and requires user interaction, limiting its exploitability, but the scope change indicates broader organizational impact. Leadership should prioritize patching to prevent potential data leakage and maintain compliance integrity.

Business Impact: Medium
Compensating Controls

Apply vendor patch.

Threat Intelligence Overview

EPSS Score
0.2%
Top 85% exploitable
Prevalence
Low
Niche licensed compliance module within the enterprise Tanium platform
Social Media
1
Sightings
Data Quality
3 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 0.2%
Patch available Yes
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact
Medium

Priority Score

36
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +36
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

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