CVE-2026-84114
Received Received - Intake

Authentication Bypass in Cleo Harmony via SAML

Publication date: 2026-09-01

Last updated on: 2026-09-01

Assigner: VulDB

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.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-09-01
Last Modified
2026-09-01
Generated
2026-09-01
AI Q&A
2026-09-01
EPSS Evaluated
N/A
NVD
CVE-2026-84114
EUVD
EUVD-2026-69237

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
cleo harmony to 5.8.1.10 (inc)

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-287 When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

This vulnerability affects Cleo Harmony up to version 5.8.1.10. It involves improper authentication due to manipulation of the Email argument in the LocalUserUtil.getNativeUserByAssertions function within the SAML Authentication component. This allows remote attackers to bypass authentication.

Detection Guidance

The provided CVE data does not include specific detection methods or commands for identifying this vulnerability on a network or system. The vulnerability is related to improper authentication in Cleo Harmony up to version 5.8.1.10 due to manipulation of the Email argument in the SAML Authentication component.

Impact Analysis

An attacker could exploit this to gain unauthorized access to the system by manipulating the Email argument during SAML authentication. This may lead to data breaches, unauthorized actions, or further network compromise depending on user privileges.

Compliance Impact

This vulnerability could lead to unauthorized access to sensitive data, violating confidentiality requirements in GDPR and HIPAA. Organizations using affected versions may face compliance violations, legal penalties, and reputational damage.

Mitigation Strategies

Upgrade Cleo Harmony to version 5.8.1.11 or later to address the improper authentication vulnerability in the SAML Authentication component.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-84114. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart