CVE-2026-84114
Cleo Harmony SAML Authentication LocalUserUtil.getNativeUserByAssertions improper authentication
- State
- Published
- Severity
- 5.3 Medium
- Published
- Sep 1, 2026
- Updated
- Sep 1, 2026
- Reserved
- Sep 1, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.3 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P | VulDB |
| 3.1 | 6.3 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C | VulDB |
| 3.0 | 6.3 Medium | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C | VulDB |
| 2.0 | 6.5 Medium | AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:OF/RC:C | VulDB |
Weaknesses
- CWE-287 Improper Authentication
Affected Products
| Product | Versions |
|---|---|
HarmonyCleo |
|
References
- VDB-397557 | Cleo Harmony SAML Authentication LocalUserUtil.getNativeUserByAssertions improper authenticationvdb-entrytechnical-description
- VDB-397557 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
- CVE-2026-84114 | CVE Analysis and Reportthird-party-advisory
- Submit #882467 | Cleo Harmony < 5.8.1.11 Authentication Bypass Issuesthird-party-advisory
- https://support.cleo.com/hc/en-us/articles/30258468834583-Cleo-Harmony-5-8-1-Release-Notes#Version58111broken-linkpatch
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