CVE-2026-73236 — Apache Syncope: Cross-Realm authorization bypass in delegated administration

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
Apache Software Foundation / Apache Syncope	affected 3.0.0-M0 through 3.0.16; affected 4.0.0-M0 through 4.0.7; affected 4.1.0-M0 through 4.1.2

CWE

CWE-863

References

https://lists.apache.org/thread/5m8t357n2xt38ym5l2rrgbjyztd97yjv

ADP enrichment

CVE

No English description supplied.

http://www.openwall.com/lists/oss-security/2026/09/14/7

CISA-ADP

No English description supplied.

No references supplied.