PatchTheCVECVE-2026-84114: A vulnerability has been found in Cleo Harmony up to 5.8.1.10
CVE-2026-84114 is a medium-severity flaw (CVSS 6.3) affecting affected software. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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 recomme
Why this priority
- No elevated risk signals yet
No fix is published yet: follow the downgrade or mitigation steps.
Risk facts
| CVSS score | 6.3 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | Low |
| User interaction | None |
| EPSS exploit chance | 0.5% (top 61%) |
| CISA exploited list | No |
| Weakness | CWE-287 |
| Published | 2026-09-01 |
| Last modified | 2026-09-01 |
Last updated 2026-09-01 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-84114?
No fixed release is listed yet. Watch the vendor advisory and apply any mitigation shown on this page.
Is CVE-2026-84114 being exploited?
CVE-2026-84114 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-84114 affect?
CVE-2026-84114 affects affected software. Severity is medium (CVSS 6.3). 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.
How urgent is CVE-2026-84114?
Priority 32/100. No elevated risk signals yet.