CVE-2026-73370
Deferred Deferred - Pending Action

Incorrect Authorization in Apache Syncope

Publication date: 2026-09-14

Last updated on: 2026-09-14

Assigner: Apache Software Foundation

Description
Incorrect Authorization vulnerability in Apache Syncope. Delegated administration security checks performed by Reconciliation service's pull and push, being incomplete, could accept calls by administrator not provided with adequate entitlements. 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-2026-73370
EUVD
EUVD-2026-77469

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. The Reconciliation service's pull and push operations perform incomplete security checks, allowing administrators without proper entitlements to make calls.

Detection Guidance

This vulnerability involves incorrect authorization checks in Apache Syncope's Reconciliation service. Detection requires verifying if administrators without proper entitlements can perform pull or push operations. Check Apache Syncope logs for unauthorized Reconciliation service calls and review user entitlements in the admin console.

Impact Analysis

An attacker with administrative access could exploit this to perform unauthorized actions, potentially leading to data breaches, privilege escalation, or system compromise. Users should upgrade to versions 4.0.8 or 4.1.3 to mitigate this risk.

Compliance Impact

This vulnerability could lead to unauthorized access to sensitive data, violating compliance requirements for GDPR (data protection) and HIPAA (health information security). Organizations must address it to maintain regulatory compliance.

Mitigation Strategies

Upgrade Apache Syncope to version 4.0.8, 4.1.3, or later to fix the incorrect authorization vulnerability in the Reconciliation service.

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