Cleo Harmony SAML Authentication LocalUserUtil.getNativeUserByAssertions improper authentication

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-84114
StatePUBLISHED
AssignerVulDB
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-01 15:17:41 UTC
Updated2026-09-01 20:47:54 UTC
DescriptionA 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.

Risk And Classification

Primary CVSS: v4.0 2.1 LOW from [email protected]

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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Problem Types: CWE-287 | CWE-287 Improper Authentication

VersionSourceTypeScoreSeverityVector
4.0[email protected]Secondary2.1LOWCVSS: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/C...
4.0CNADECLARED5.3MEDIUMCVSS: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
3.1[email protected]Secondary6.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
3.1CNADECLARED6.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
3.0CNADECLARED6.3MEDIUMCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
2.0[email protected]Secondary6.5AV:N/AC:L/Au:S/C:P/I:P/A:P
2.0CNADECLARED6.5AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:OF/RC:C

CVSS v4.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
Low
User Interaction
None
Confidentiality
Low
Integrity
Low
Availability
Low
Sub Conf.
None
Sub Integrity
None
Sub Availability
None

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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1 Breakdown

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

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

CVSS v3.0 Breakdown

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

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Cleo Harmony affected 5.8.1.0 Not specified
CNA Cleo Harmony affected 5.8.1.1 Not specified
CNA Cleo Harmony affected 5.8.1.2 Not specified
CNA Cleo Harmony affected 5.8.1.3 Not specified
CNA Cleo Harmony affected 5.8.1.4 Not specified
CNA Cleo Harmony affected 5.8.1.5 Not specified
CNA Cleo Harmony affected 5.8.1.6 Not specified
CNA Cleo Harmony affected 5.8.1.7 Not specified
CNA Cleo Harmony affected 5.8.1.8 Not specified
CNA Cleo Harmony affected 5.8.1.9 Not specified
CNA Cleo Harmony affected 5.8.1.10 Not specified
CNA Cleo Harmony unaffected 5.8.1.11 Not specified

References

ReferenceSourceLinkTags
vuldb.com/vuln/397557 [email protected] vuldb.com
vuldb.com/vuln/397557/cti [email protected] vuldb.com
vuldb.com/cve/CVE-2026-84114 [email protected] vuldb.com
support.cleo.com/hc/en-us/articles/30258468834583-Cleo-Harmony-5-8-1-Release-N... [email protected] support.cleo.com
vuldb.com/submit/882467 [email protected] vuldb.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: ilyass-armadin (VulDB User) (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-09-01T00:00:00.000ZAdvisory disclosed
CNA2026-09-01T02:00:00.000ZVulDB entry created
CNA2026-09-01T09:25:45.000ZVulDB entry last update

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