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CVE-2026-12139— Tanium addressed an information disclosure vulnerability in Connect.

Quick assessment

Affected
Tanium Connect
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Tanium connect是美国Tanium公司的一套端点连接与集成平台。 Tanium Connect 5.29.251版本之前版本、5.37.156版本之前版本和5.47.112版本之前版本存在信息泄露漏洞，该漏洞源于信息泄露问题，可能导致具有高权限的攻击者获取敏感信息。

CVSS 4.4 · Medium EPSS 0.16% · P4

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage

Affected Version Matrix 3

VendorProduct Version RangeStatus
Tanium Connect 5.29.251< 5.29.251 affected
5.37.156< 5.37.156 affected
5.47.112< 5.47.112 affected
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I. Basic Information for CVE-2026-12139

Vulnerability Information
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Vulnerability Title
Tanium addressed an information disclosure vulnerability in Connect.
Source: CVE Program / CVE List V5
Vulnerability Description
Tanium addressed an information disclosure vulnerability in Connect.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过处理环境导致的信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
Tanium Connect 信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Tanium connect是美国Tanium公司的一套端点连接与集成平台。 Tanium Connect 5.29.251版本之前版本、5.37.156版本之前版本和5.47.112版本之前版本存在信息泄露漏洞，该漏洞源于信息泄露问题，可能导致具有高权限的攻击者获取敏感信息。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Tanium Connect 5.29.251 ~ 5.29.251 -

II. Public POCs for CVE-2026-12139

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III. Intelligence Information for CVE-2026-12139

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Vendor Advisories for CVE-2026-12139 (1)

IV. Related Vulnerabilities

Same product: Connect
Same vendor: Tanium
Same weakness: CWE-214

V. Comments for CVE-2026-12139

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