CVE-2026-81818

HighCVSS 8.6/10Last modified Aug 28, 2026

Description

Affected versions of Flowintel contain an authorization flaw in the administrative user-edit API.

The existing authorization check correctly prevented an organization administrator from editing users in another organization, but it did not prevent them from editing a full administrator within their own organization. As a result, an org admin could modify that full administrator account, including changing its password. The upstream commit explicitly describes the issue as:

“Org admin can change the password of a full admin in the same organization.”

The fix adds a higher-privilege boundary check:

if user_to_edit.is_admin(): return ... 403

so organization administrators can no longer modify full administrator accounts.

Version impacted >=3.3.0

Metrics

CVSS 4.0 8.6/10CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/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

Weakness enumeration

Affected software

VendorProductVersions
flowintelflowintel<= 3.3.0

References

Timeline

Published
Aug 27, 2026
Last modified
Aug 28, 2026
NVD status
Deferred

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CVE-2026-81818: High severity, CVSS 8.6 | Vulnix