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CVE-2026-84114— Cleo Harmony SAML Authentication LocalUserUtil.getNativeUserByAssertions improper authentication

Quick assessment

Affected
Cleo Harmony
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.

Cleo Harmony 软件在 5.8.1.10 及更早版本中存在一个漏洞。受影响的组件是 SAML 认证模块，具体位于 函数。对参数 的不当操控会导致身份认证机制失效。该漏洞可被远程利用，且相关利用方法已公开披露，可能被攻击者用于实施攻击。建议将软件升级至 5.8.1.11 或更高版本以修复此问题，同时建议升级受影响的组件。

CVSS 6.3 · Medium
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I. Basic Information for CVE-2026-84114

Vulnerability Information
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Vulnerability Title
Cleo Harmony SAML Authentication LocalUserUtil.getNativeUserByAssertions improper authentication
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability has been found in Cleo Harmony up to 5.8.1.10. Impacted is the function LocalUserUtil.getNativeUserByAssertions of the component SAML Authentication. Such manipulation of the argument Email leads to improper authentication. The attack can be executed remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 5.8.1.11 is recommended to address this issue. Upgrading the affected component is recommended.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
认证机制不恰当
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Cleo Harmony 5.8.1.0 cpe:2.3:a:cleo:harmony:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-84114

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III. Intelligence Information for CVE-2026-84114

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Vendor Advisories for CVE-2026-84114 (1)

Security Blog Posts for CVE-2026-84114 (1)

Vendor Pages for CVE-2026-84114 (1)

Other References for CVE-2026-84114 (1)

IV. Related Vulnerabilities

Same product: Harmony
Same vendor: Cleo
Same weakness: CWE-287

V. Comments for CVE-2026-84114

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