CVE-2026-73236 Details
Description
Incorrect Authorization vulnerability in Apache Syncope. Delegated administration security checks are based on Realm hierarchy and enforced via prefix matches. Due to incorrect implementation, two sibling Realms whose names begin with the same string cannot be correctly distinguished, resulting in incorrect authorization. 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.
A vulnerability allowing cross-realm authorization bypass has been identified in Apache Syncope. This issue arises in versions 3.0.0-M0 through 3.0.16, 4.0.0-M0 through 4.0.7, and 4.1.0-M0 through 4.1.2. The vulnerability is rooted in the delegated administration security checks, which rely on Realm hierarchy and are enforced through prefix matches. The flawed implementation prevents correct distinction between two sibling Realms whose names start with the same string, leading to improper authorization.
Users are advised to upgrade to Apache Syncope versions 4.0.8 or 4.1.3, which address this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Sep 14, 2026CISA-ADP
Assessed Sep 14, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2026/09/14/7 | CVE | AdvisoryMailing ListRemedy |
| https://lists.apache.org/thread/5m8t357n2xt38ym5l2rrgbjyztd97yjv | [email protected] | AdvisoryMailing ListRemedyVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-863 | Incorrect Authorization | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Apache Syncope | >= 3.0.0-M0, <= 3.0.16 (semver) >= 4.0.0-M0, <= 4.0.7 (semver) >= 4.1.0-M0, <= 4.1.2 (semver) |
CPE
Remediation
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Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 14, 2026 | CVE Modified | CISA-ADP |
| Sep 14, 2026 | CVE Modified | CVE |
| Sep 14, 2026 | New CVE Received | [email protected] |