CVE-2026-73668
Deferred Deferred - Pending Action

Incorrect Authorization in Apache Syncope Allows Connector Configuration Exposure

Publication date: 2026-09-14

Last updated on: 2026-09-14

Assigner: Apache Software Foundation

Description
Incorrect Authorization vulnerability in Apache Syncope. An administrator with adequate entitlements in a given Realm may be able to read via REST the full Connector configuration, confidential properties included, scoped in another Realm and thus be able to effectively duplicate such Connector instance into the Realm they have administration rights for. 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.

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Meta Information

Published
2026-09-14
Last Modified
2026-09-14
Generated
2026-09-15
AI Q&A
2026-09-14
EPSS Evaluated
N/A
NVD
CVE-2026-73668
EUVD
EUVD-2026-77458

Affected Vendors & Products

Showing 4 associated CPEs
Vendor Product Version / Range
apache syncope From 3.0.0-M0 (inc) to 3.0.16 (inc)
apache syncope From 4.0.0-M0 (inc) to 4.0.7 (inc)
apache syncope 4.0.8
apache syncope 4.1.3

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-863 The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.

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Executive Summary

This is an Incorrect Authorization vulnerability in Apache Syncope. An administrator with proper permissions in one Realm can read and duplicate a Connector configuration from another Realm, including confidential properties, by exploiting REST API access.

Detection Guidance

This vulnerability involves incorrect authorization in Apache Syncope allowing unauthorized access to Connector configurations. To detect it, check Apache Syncope logs for unusual REST API access patterns or unauthorized realm-scoped data retrievals. Verify if administrators can access configurations outside their assigned realms. Ensure Syncope is updated to version 4.0.8, 4.1.3, or later to mitigate the issue.

Impact Analysis

An attacker with admin rights in one Realm could access sensitive Connector configurations from other Realms, potentially exposing confidential data or allowing unauthorized system modifications. This could lead to data breaches or system compromise.

Compliance Impact

This vulnerability could violate compliance requirements by allowing unauthorized access to sensitive data, potentially leading to data leaks. Organizations using affected Syncope versions may face regulatory penalties for failing to protect personal or health information.

Mitigation Strategies

Upgrade Apache Syncope to version 4.0.8 or 4.1.3 or later to fix the incorrect authorization vulnerability.

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