CVE-2026-81818: Software Security Vulnerability Vulnerability

HIGH
Advisory Identifier: GHSA-7p7v-2gph-j69j
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CWE-269
Published
Advisory Summary

CVE-2026-81818 is a HIGH security vulnerability vulnerability (CWE-269: Improper Privilege Management) affecting Software libraries in the Maven ecosystem. The weakness occurs when the product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.. Remediation is available in the latest vendor maintenance releases.

CVE-2026-81818 at a Glance

CVE Identifier CVE-2026-81818
GHSA Identifier GHSA-7p7v-2gph-j69j
Severity HIGH
CVSS v3.1 Base Score N/A
CWE Classification CWE-269: Improper Privilege Management
Affected Product Software
Package Ecosystem Maven
Published Date
Last Updated

How to Fix CVE-2026-81818

To remediate this vulnerability, upgrade all affected Software dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

mvn dependency:tree

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2026-81818, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree

Analyze the terminal output to locate any version of Software in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The mvn dependency:tree command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-269: Improper Privilege Management, where the product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. In Software, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

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

References

NVD — CVE-2026-81818 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-81818
Security Fix Commit FIX COMMIT
https://github.com/flowintel/flowintel/commit/ffe64d1133b7d84909a69661bd5fee607e9ce757.patch

Frequently Asked Questions

What is CVE-2026-81818?
CVE-2026-81818 is a security vulnerability in Software classified as a security vulnerability vulnerability under CWE-269: Improper Privilege Management.
Which Software versions are affected?
Affected versions include releases prior to current release patches.
What version fixes CVE-2026-81818?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
What CWE is associated with CVE-2026-81818?
CVE-2026-81818 is classified under CWE-269: Improper Privilege Management (The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.).
How can I check Maven dependencies for CVE-2026-81818?
Run the dependency tree command: 'mvn dependency:tree'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-7p7v-2gph-j69j",
  "modified" : "2026-08-27T18:32:30Z",
  "published" : "2026-08-27T18:32:30Z",
  "aliases" : [ "CVE-2026-81818" ],
  "details" : "Affected versions of Flowintel contain an authorization flaw in the administrative user-edit API.\n\n\nThe 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:\n\n\n“Org admin can change the password of a full admin in the same organization.”\n\n\nThe fix adds a higher-privilege boundary check:\n\n\nif user_to_edit.is_admin(): return ... 403\n\nso organization administrators can no longer modify full administrator accounts.\n\nVersion impacted >=3.3.0",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "CVSS: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"
  } ],
  "affected" : [ ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-81818"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/flowintel/flowintel/commit/ffe64d1133b7d84909a69661bd5fee607e9ce757.patch"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-269" ],
    "severity" : "HIGH",
    "github_reviewed" : false,
    "github_reviewed_at" : null,
    "nvd_published_at" : "2026-08-27T17:21:05Z"
  }
}