CVE-2026-73236 PUBLISHED

Apache Syncope: Cross-Realm authorization bypass in delegated administration

Assigner: apache
Reserved: 11.08.2026 Published: 14.09.2026 Updated: 14.09.2026

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.

Product Status

Vendor Apache Software Foundation
Product Apache Syncope
Versions Default: unaffected
  • affected from 3.0.0-M0 to 3.0.16 (incl.)
  • affected from 4.0.0-M0 to 4.0.7 (incl.)
  • affected from 4.1.0-M0 to 4.1.2 (incl.)

Credits

  • Aleksandar Djordjevic finder
  • n0mi1k finder

References

Problem Types

  • CWE-863 Incorrect Authorization CWE