---
id: CVE-2026-77181
title: "Incorrect Authorization vulnerability in Apache Syncope.\n\n\n\nAn administrator with ClientApp's update entitlement is unable to perform the related operation, while\_ClientApp's create entitlement is checked both for create and update opera…"
summary: "Incorrect Authorization vulnerability in Apache Syncope.\n\n\n\nAn administrator with ClientApp's update entitlement is unable to perform the related operation, while\_ClientApp's create entitlement is checked both for create and update opera…"
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-863
vendor: Apache Software Foundation
product: 'org.apache.syncope.core.am:syncope-core-am-logic'
affected:
  - 'org.apache.syncope.core.am:syncope-core-am-logic >= 3.0.0-M0 <= 3.0.16'
  - 'org.apache.syncope.core.am:syncope-core-am-logic >= 4.0.0-M0 <= 4.0.7'
  - 'org.apache.syncope.core.am:syncope-core-am-logic >= 4.1.0-M0 <= 4.1.2'
published: '2026-09-14'
updated: '2026-09-14'
sourceUpdated: '2026-09-14T20:58:48.430'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-77181'
references:
  - url: 'https://lists.apache.org/thread/swqj31jhbz7hmmkjy42461zp9rhh9lwy'
    label: security@apache.org
  - url: 'http://www.openwall.com/lists/oss-security/2026/09/14/16'
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: total
  timestamp: '2026-09-14T19:15:01.068600Z'
ingestedAt: '2026-09-14T15:23:07.430Z'
epss: 0.00477
epssPercentile: 0.40224
---

## Overview

Incorrect Authorization vulnerability in Apache Syncope.



An administrator with ClientApp's update entitlement is unable to perform the related operation, while ClientApp's create entitlement is checked both for create and update operations on ClientApp.





This issue affects Apache Syncope: from 3.0.0-M0 through 3.0.16, from 4.0.0-M0 Through 4.0.7, from 4.1.0-M0 through 4.1.2.

Users are recommended to upgrade to version 4.0.8 / 4.1.3, which fix this issue.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.