CVE-2026-62183
Apache Syncope: User self-service privilege escalation
Improper Privilege Management vulnerability in Apache Syncope. When: * the all-Java user workflow adapter is configured, or * the Flowable user workflow adapter is configured, bearing a BPMN definition not requiring admin approval for user self registration of self update requests the following scenario could happen. A REST API call can allow the user to grant themselves one or more of defined Roles, thus gaining their Entitlements and becoming in fact an administrator; the actual Entitlements gained depend on the Roles that are effectively defined on the specific Syncope deployment. This issue affects Apache Syncope: from 3.0.0-M0 through 3.0.16, from 4.0.0-M0 Through 4.0.6, from 4.1.0-M0 through 4.1.1. Users are recommended to upgrade to version 4.0.7 / 4.1.2, which fix this issue.
- Affected
- Apache Software Foundation · Apache Syncope
- CVSS v3.1 CNA
- 9.8 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS
- 0.69% chance of exploitation in the next 30 days, 52nd percentile
- Published
- 2026-07-20
- Updated
- 2026-07-21
Proof-of-concept exploits (1)
- NicPWNs/CVE-2026-621831★ · 2026-07-21
Security advisories
- https://lists.apache.org/thread/6r8cngvy43y2yk4jj3w060dt8vx0yzpr
- http://www.openwall.com/lists/oss-security/2026/07/20/9