Authorization Flaw in Apache Syncope Impacts Multiple Versions
CVE-2026-77181

9.8CRITICAL

Key Information:

Vendor

Apache
Status
Apache Syncope
Vendor
CVE Published:
14 September 2026

What is CVE-2026-77181?

An incorrect authorization vulnerability exists in Apache Syncope that prevents users with update privileges on ClientApp from executing the intended operations. Specifically, while ClientApp's create entitlement grants permissions for creation, it improperly applies the same for update operations, leading to potential security breaches. Affected users are urged to upgrade to version 4.0.8 or 4.1.3 to address this issue effectively.

Affected Version(s)

Apache Syncope 3.0.0-M0 <= 3.0.16

Apache Syncope 4.0.0-M0 <= 4.0.7

Apache Syncope 4.1.0-M0 <= 4.1.2

References

https://lists.apache.org/thread/swqj31jhbz7hmmkjy42461zp9...
vendor-advisory

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

n0mi1k
.